Indian Institute of Technology, Patna

Dr. Manoranjan Kar

Dr. Manoranjan Kar

Associate Professor

Ph.D, IIT Guwahati

Ph: +91-612-302 8013

Fax: +91-612-227 7383

mano[*AT]iitp.ac.in

Google Scholar: https://scholar.google.co.in/citations?user=7RrdmBsAAAAJ&hl=en
https://www.researchgate.net/profile/Manoranjan_Kar

Download : CV

Research Areas:Condensed Matter Physics, Nanomaterials, Materials ScienceResearch and Development:

Area of Expertise	Research and Development activities & Significant recent contributions
Magnetic materials, Nanostructured ferrites, Multiferroic Materials, Composites.	Recently, we have standardized the method of preparation for pure phase Bismuth Ferrite. The crystal structure and magnetic phase diagram for co-doped bismuth ferrite has been demonstrated. We have successfully shown the ferromagnetic contribution in Bismuth Ferrite by Arrot plot technique. Quantification of mixed crystal phase in the bismuth ferrite has been demonstrated by XRD and neutron diffraction. We have calculated the anisotropy of cobalt ferrite nanoparticle which will help to use the cobalt ferrite in the industry.

Area of Expertise

Research and Development activities & Significant recent contributions

Magnetic materials, Nanostructured ferrites, Multiferroic Materials, Composites.

Recently, we have standardized the method of preparation for pure phase Bismuth Ferrite. The crystal structure and magnetic phase diagram for co-doped bismuth ferrite has been demonstrated. We have successfully shown the ferromagnetic contribution in Bismuth Ferrite by Arrot plot technique. Quantification of mixed crystal phase in the bismuth ferrite has been demonstrated by XRD and neutron diffraction. We have calculated the anisotropy of cobalt ferrite nanoparticle which will help to use the cobalt ferrite in the industry.

Current Sponsored Projects:

Title	Principal Investigator	Sponsored by	Duration
Tailoring magnetic properties of bimagnetic core/shell nanoparticles for soft magnetic applications	Dr. Manoranjan Kar	DAE, BRNS, Government of India	3 Years
Tuning of FM-AFM Exchange Interactions on Magnetic Nanocrystalline Materials for Soft Magnetic Applications	Dr. Manoranjan Kar	DST, Government of India	3 Years
FerrimagneticNanocrystalline arrays in ferroelectric or conducting polymer for soft magnetic application	Dr. Manoranjan Kar	CSIR, Government of India	3 Years

Courses taught at IITP :Undergraduate level:

PH102: Physics – II
PH110: Physics Lab
PH401: Introduction to Nanomaterials
PH201: Vacuum Science and Techniques
PH001: Preparatory Physics – I
PH002: Preparatory Physics - II

Postgraduate level:

PH703: Quantum Mechanics and Statistical Mechanics
PH704: Expermental Techniques and Scientific Presentation
PH513: Magnetism at Nanoscale
NT502: Analytical Techniques
PH707: Magnetism and superconductivity
PH523: Solid State Physics

Ph.D. Students:

Completed (02), Submitted (0), Writing (02), On-going (07)
Lawrence Kumar *PhD awarded* *(Asst. Prof. CU, Jharkhand)*	Pawan Kumar *Thesis submitted* *(Asst. Prof. CU Motihari, Bihar)*	Rajnish Kumar (writing thesis)	Sweety Supriya (writing thesis)

Sunil Kumar	Rabichandra Pandey	Lagen Pradhan
Shampa Guha	Suman Kumari	Jyotirekha Mallick	Subhadeep Datta

Postdoctoral Scholar

Nawnit Kumar
SERB-National Post-Doctoral Fellowship (N-PDF), Under ( May-2017, Continue)

M. Tech.(Nanoscience and Nanotechnology) Students

Laser KananPahari (Degree Awarded)
Aswani M. Goswami (Degree Awarded)
RabichandraPandey (Degree Awarded)
Lagen Kumar Pradhan (Degree Awarded)
Rinkal Kanani (Degree Awarded)
Akshay Saxena (Degree Awarded)
Dewanand pandit (ongoing)

M. Sc. (Physics)

Ramakant Sethi

Summer Internship

Sanjeet Singh , M.Sc, IIT Dhanbad (2014)
Randhir Singh , Integrated M.Sc, IISER Kolkata (2015 )
Shubham Srivathav , Integrated M.Sc, IISER Kolkata (2015)
Sashi Kumar , M.Sc IIT Dhanbad( 2016)
Shubham Sinha , Integrated M.Sc , IISER Tirupati, 2017
Diksha Kumari , M.Sc, BIT Mesra, 2017

Professional Experience:

Asso. Professor IIT Patna 17^th Dec 2015 (continuing)
Asst. Professor IIT Patna 10^th Dec 2008-16^th Dec 2015
Asst. Professor TITE BBSR 1^st Sept - 10^th Dec 2008
Scientific Officer Centre for Nanotechnology, IIT Guwahati 31^st Dec 2004 - 31^st Aug 2008
Project Assistant Scientist Dept. of Physics, IIT Guwahati July 2004 - Dec 2004

Awards & Honours:

DAE Young Scientist Research Award
DST YSSR

Administration:

Associate Dean(Faculty): IITP, Since January-2016 – March-2017
Co-ordinator: School of Basic Science, IIT Patna, Since March-2015 – Dec-2016
Faculty in-charge: Institute lecture, IIT Patna, Since Jan-2014
Co-ordinator, Preparatory course: IIT Patna, Since Jan-2014
Co-ordinator, Department of Physics: IIT Patna, Jan-2013 till Dec. 2013
Faculty in-charge Library: Dec-2008 to Dec-2012
Library in-charge: Sep 2008 to Nov 2008, TITE Bhubaneswar

Member, Editorial Board:ISST Journal of Applied Physics (IJAP)

Publications:Peer Reviewed Journal Publications:

2017

S. Kumar, S. Supriya, L. K. Pradhan and M. Kar, Effect of Microstructure on Electrical Properties of Li and Cr substituted Nickel Oxide, Journal of Materials Science Materials in Electronics, (2017) (Accepted).
S. Supriya, S. Kumar and M. Kar, Electrical Properties and Dipole Relaxation Behavior of Zinc Substituted Cobalt Ferrite, Journal of Electronic Materials (2017) (Accepted).
S. Supriya, S. Kumar and M. Kar, Impedance and DC resistivity studies on chromium substituted cobalt ferrite, Journal of Materials Science Materials in Electronics, 28, 10652–10673 (2017)
Rajnish Kumar, Rakesh Kr. Singh, Mukesh Kumar Zope and M. Kar “Tuning of magnetic property by lattice strain in lead substituted cobalt ferrite” Materials Science and Engineering B 220, 73-81, (2017)
Lawrence Kumar, Pawan Kumar, Mukesh Kumar Zope and M. Kar “High-Temperature Magnetic Behaviour of 10 % Aluminium-Substituted Cobalt Ferrite” J Supercond Nov Magn, DOI 10.1007/s10948-016-3965-5, (2017)

2016

R. Kumar, M. Kar , “Correlation between lattice strain and magnetic behavior in non-magnetic Ca substituted nano-crystalline Cobalt Ferrite” Ceramics international 42, (2016) 6640-6647.
R. Kumar, M. Kar, “Lattice strain induced magnetism in substituted nanocrystalline cobalt ferrite” Journal of Magnetism and Magnetic Materials 416, (2016).335-341.
P. Kour, S. K. Pradhan, Pawan Kumar, S. K. Sinha, M. Kar, “Enhanced ferroelectric and piezoelectric properties in La-modified PZT ceramics” Appl. Phys. A, (2016).122:591.
Sweety Supriya, Sunil Kumar and M. Kar “Correlation between AC and DC transport properties of Mn substituted cobalt ferrite” J. Appl. Phys. (2016).120, 215106
Sweety Supriya, Sunil Kumar and M. Kar “Enhancement of Impedance by Chromium Substitution and Correlation with DC Resistivity in Cobalt Ferrite” (2016) arXiv: 1610. 02489.
Chandrakanta Panda, Pawan Kumar, Rajnish Kumar and M. Kar “Enhanced Magnetic Properties near MPB in Ho and Mn Co-Substituted Nanocrystalline BiFeO₃” Advanced Science Letters, (2016) 22, 766-772.

2015

P. Kumar, N. Shankhwar, A. Srinivasan and M. Kar, “Oxygen Octahedra Distortion induced Structural and Magnetic Phase Transitions in Bi_1-xCa_xFe_1-xMn_xO₃ Ceramics” J. Appl. Phys. 117, (2015) 194103.
P. Kumar, C. Panda and M. Kar, “Effect of Rhombohedral to Orthorhombic Transition on Magnetic and Dielectric Properties of La and Ti co-substituted BiFeO_3” Smart Material and Structures, 24(2015) 045028.
P. Kumarand M. Kar, Effect of Structural Phase Transition on Magnetic and Optical Properties of co-substituted Bismuth Ferrite, Materials Science in Semiconductor Processing 31(2015) 262.
P. Kour,P. Kumar, S. K. Sinha and M. Kar, “ Study of Dielectric and Impedance spectroscopy of La Substituted Nanocrystalline Pb(Zr_0.52Ti_0.48)O₃ Ceramics” Journal of Materials Science: Materials in Electronics, 26 (2015) 1304.
V. Kumar, S. Kumari, P. Kumar, M. Kar, L. Kumar, “Structural Analysis by Rietveld Method and its Correlation with Optical Properties of Nanocrystalline Zinc Oxide” Advanced Materials Letters6 (2) (2015) 139.
S. Kumari, V. Kumar, P. Kumar, M. Kar and L. Kumar, “Structural and Magnetic Properties of Nanocrystalline Yttrium Substituted Cobalt Ferrite Synthesized by the Citrate Precursor Technique” Advance Powder Technology 26 (1) (2015) 213.

2014

C. Panda, P. Kumar, A.K.Sinha, A. Sagdeo and M. Kar “Insights of Dielectric relaxations in Nd and Mn co-substituted BiFeO₃” arXiv:1512.02757, (2015).
P. Kumar and M. Kar, Effect of Structural Transition on Magnetic and Dielectric Properties of La and Mn co-substituted BiFeO₃ Ceramics, Material Chemistry and Physics148 (2014) 968.
P. Kumar and M. Kar, Tuning of Net Magnetic Moment in BiFeO₃Multiferroics by Co-substitution of Nd and Mn, Physica B448 (2014) 90.
P. Kumarand M. Kar, Effect of Structural Transition on Magnetic and Optical Properties of Ca and Ti co-substituted BiFeO₃ Ceramics.Journal of Alloys Compound584 (2014) 566.
L. Kumar, P. Kumar and M. Kar. Low Temperature and High Magnetic Field Dependence Magnetic Properties of Nanocrystalline Cobalt Ferrite, Journal of Superconductivity and Novel Magnetism 27 (2014) 1677.
L. Kumar, P. Kumar and M. Kar.Non-linear Behaviour of Coercivity to the Maximum Applied Field in La³⁺ substituted Nanocrystalline Cobalt Ferrite.Physica B 448 (2014) 38.
P. Kour,P. Kumar, S. K. Sinha and M. Kar, Electrical Properties of Calcium Modified PZT (52/48) Ceramics, Solid State Communications190 (2014) 33.
A. Bisen, A. Satapathy, S. Parida, E. Sinha, S.K. Rout, M. Kar. Structural, optical band gap, microwave dielectric properties and dielectric resona antenna studies of Ba_(1−x)La_(2x/3)ZrO₃ (0 < x < 0.1) ceramics, J. Alloys. Compd, 615 (2014) 1006.
A. K. Das, M. Kar, A. Srinivasan, Room temperature ferromagnetism in undoped ZnO nanofibers prepared by electrospinning, Physica B, 448 (2014) 112.

2013

L. Kumar, P. Kumar and M. Kar. Cation Distribution by Rietveld Technique and Magnetocrystalline Anisotropy of Zn Substituted Nanocrystalline Cobalt Ferrite, Journal of Alloys Compound 551 (2013) 72.
L. Kumar, P. Kumar and M. Kar.Effect of Non Magnetic Substitution on the Structural and Magnetic Properties of Spinel Cobalt Ferrite (CoFe_2-xAl_xO₄) Ceramics, Journal of Materials Science: Materials in Electronics 24(8) (2013) 2706.
L. Kumar, P. Kumar and M. Kar.Comparative studies on Magnetocrystalline anisotropy constant of CoFe_1.5M_0.5O₄, M=Al & Cr., Physics Express3 (2013) 21.
L. Kumar, P. Kumar and M. Kar. Influence of Mn substitution on crystal structure and magnetocrystalline anisotropy of nanocrystalline Co_1-xMn_xFe_2-2xMn_2xO₄. Applied Nanoscience3 (2013) 75.
L. Kumar, P. Kumar, A. Narayan and M. Kar. Rietveld Analysis of XRD Patterns of Different Size Nanocrystalline Cobalt Ferrite, International Nano Letters, 3 (2013) 8.
S. Mohanty, M. Kar and S. Ravi,. Ferromagnetism in Mechanically Milled pure SnO₂. International Journal of Modern Physics B, 27, (2013), 1350025.
N. Sahu, M. Kar and S. Panigrahi.Conduction Mechanism by Using CBH Model in Fe⁺³ and Mn⁺³ion Modified Pb(Zr_0.65− A Ti_0.35)O₃(A=Mn/Fe) Ceramics.Journal of Materials Volume 2013(2013).
N. Khobragade, E.Sinha, S.K. Rout, M. Kar, Structural, optical and microwave dielectric properties of Sr_1−xCa_xWO₄ ceramics prepared by the solid state reaction route, Ceramics International39 (2013) 9627–9635.
M.Ganguly, S. K. Rout, C. W.Ahn, I. W. Kim, M. 0Kar, Structural, electrical and optical properties of Ba (Ti_{1− x}Yb_4x/3)O₃ ceramics,Ceramics International, 39(8), (2013), 9511–9524.
B. Parija, T. Badapanda, P.K. Sahoo, M. Kar, S. Panigrahi, P. Kumar, Structural and electromechanical study of Bi_0.5Na_0.5TiO₃-BaTiO₃ solid-solutions, Processing and Application of Ceramics, 7(2013),2.

Up to 2012

L. Kumar and M. Kar Effect of Ho³⁺ Substitution on the Cation distribution, Crystal Structure and Magneto-crystalline Anisotropy of Nanocrystalline Cobalt Ferrite, J. Experimental Nanoscience, (2012), 1–13
L. Kumar and M. Kar, Effect of La³⁺ substitution on the structural and magnetocrystalline anisotropy of Nanocrystalline cobalt ferrite (CoFe_2-xLa_xO₄),Ceramic International, Vol. 38, No. (2012), 4771-4782.
L. Kumar and M. Kar, Effect of Annealing Temperature and Preparation Condition on Magnetic Anisotropy in Nanocrystalline Cobalt Ferrite, IEEE Transactions on Magnetics 47 (10),(2011), 1-4.
N. Sahua, S. Panigrahia and M. Kar “Structural investigation and dielectric studies on Mn substituted Pb(Zr0.65Ti0.35)O3 perovskite ceramics” Ceramics International 38, 1549-1556 (2012).
L. Kumar and M. Kar, Influence of Al³⁺ ion concentration on the crystal structure and magnetic anisotropy of nanocrystalline spinel cobalt ferrite, Journal of Magnetism and Magnetic Materials, 323, (2011), 2042–2048.
N. Sahu, S. Panigrahi and M.Kar, Structural investigation and dielectric studies on Mn substituted Pb(Zr_0.65Ti_0.35)O₃perovskite ceramics, Ceramics International, 38(2), pp. (2011), 1549-1556.
N. Sahu, S. Panigrahi and M.Kar, Structural study of Zr doped PbTiO₃ materials by employing Rietveld method, Advanced Powder Technology, 22 (6), (2011), 689-694.
N. Sahu, M. Kar and S. Panigrahi, Rietveld Refinement, Microstructure and Electrical Properties of PbTiO₃ Ceramic Materials, Archives of Physics Research, 1 (1), (2010), 75-87.
K. K. Singh, M. Kar and H. L. Das, Effect of substrate temperature on photoconductivity in CdS thin films,Indian Journal of Pure and applied physics, 48, pp. (2010), 110-114.
A. Murugadoss, M. Kar, R. Pasricha and A. Chattopadhyay, Silver Fused Conducting Fiber Formation of Au@Ag Core-shell Nanoparticles Mediated by Ascorbic Acid., Plasmonics,,Volume 4, Issue 2, (2009), 161-170.
S. K. Srivastava, M. Kar, S. Ravi, P. K. Mishra, P. D. Babu, Magnetic properties of electron-doped Y_1−xCe_xMnO₃ compounds, Journal of Magnetism and Magnetic Materials, Volume 320, issue 19 (2008), 2382-2386.
S. K. Srivastava, M. Kar and S. Ravi, Ferromagnetic Insulating and Spin Glass behaviour in Cr Substituted La_0.85Ag_0.15MnO₃Compounds., J. Phys.: Condens. Matter 20,(2008),235201
S. K. Srivastava, M.Kar and S. Ravi, Effect of Al Substitution on La_0.85Ag_0.15MnO₃ Double Exchange Ferromagnetic Compound. Materials Science Eng. B, 147 (2008), 84-89.
A. Murugadoss, M. Kar and A. Chattopadhyay, Acetanilide Mediated Reversible Assembly and Disassembly of Au Nanoparticles and Their Catalytic Activities.Journal of Colloid and Interface Science - J Colloid Interface Sci, vol. 324, no. 1,(2008), 230-235.
S. Ravi, M. Kar, S. M. Borah and P.S.R. Krishna,Neutron Powder Diffraction Studies in CaMn_1-xCu_xO₃ (x = 0, 0.20). Crystal Research and Technology, Volume 43, Issue 12,(2008),1318–1322
S. K. Srivastava, M. Kar and S. Ravi,Preparation and Characterization of Hexagonal Y_1-xCe_xMnO₃. Ind. Journal of Phys, 82, (2008), 195-200.
S. K. Srivastava, M. Kar and S. Ravi, Effect of Co Doping on the Magnetic Properties of La_0.85Ag_0.15 (Mn_1-yCo_y)O₃.Journal of Magnetism and Magnetic Materials, Volume 320, issue 14 (2008), p. e107-e110.
S. K, Bharadwaj, S. Hussain, M. Kar and K. M. Chaudhuri, Acid Phosphate impregnated Titania Catalyzed Nitration of Aromatic Compounds with Nitric Acid., Applied Catalysis A: Volume 343, Issues 1–2, (2008), Pages 62–67.
S. K. Bharadwaj, S. Hussain, M. Kar, M. K. Chaudhuri, Al (H₂PO₄)₃: An efficient catalyst for nitration of organic compounds with nitric acid. Catalysis Communicationsvol. 9, no. 5, pp. 919-923, 2008.
S. K. Srivastava, M. Kar and S. Ravi,Electrical Transport and Magnetic Properties on La_0.85Ag_0.15(Mn_1-yAl_y)O₃Compound., Indian Journal of Physics 82 (6) (2008)
S. Srivastava, M. Kar, and S. Ravi, Linear and Non Linear ac Susceptibility studies in La (Mn_1-xCu_x) O₃. J. Magn. Magn. Mat. 307, 318-324 (2006).
M. Kar, S. M. Borah and S. Ravi Study of Electrical Transport and Magnetic Properties in CaMn_1-xCu_xO₃., Mat. Scien. & Eng. B, 129, 54-58 (2006).
M. Kar, A. Perumal and S. Ravi, Critical behavior studies in La_1-xAg_xMnO₃ Double-Exchange Ferro magnet. Physica Status Solid B, 243, 1908-1913 (2006).
M. Kar and S. Ravi, Electrical Resistivity and ac Susceptibility Studies in Sr_1-xLa_xMnO₃. Mod. Phys. Lett. B, 20, 1517-1528, (2006).
M. Kar and S. Ravi, Study of electrical transport and ac susceptibility in LaMn_1-xCu_xO₃Mod. Phys. Lett. B, 19, 317-330, (2005).
M. Kar and S. Ravi Magneto-Resistivity, Ferromagnetism and Charge Ordering in Ba_1-xLa_xMnO₃., Mat. Scien. & Eng. B, 123, 95-101 (2005).
M. Kar and S. Ravi, Study of Structural, Electrical Transport and Magnetic Properties in La_1-xAg_xMnO₃Compounds. Modern Physics Letters B, 18 (221-231) 2004.
M. Kar and S. Ravi, Electrical resistivity and ac susceptibility studies in La_1-xAg_xMnO₃. Mat. Scien. & Eng. B, 110 (46-51) 2004.
S. Ravi and M.Kar, Study of magneto-resistivity in La_1-xAg_xMnO₃ compounds, Physica B, 348 (169-176) 2004.
M. Kar and S. Ravi Study of structural, magnetic, and electrical transport properties in La_1-xCu_xMnO₃., Mat. Scien. & Eng. B, 107 (332-336) 2004.
M. Kar and S. Ravi, PRAMANA Metal-insulator transition in electron-doped Ba_1-xLa_xMnO₃ compounds. Pramana J. of Physics, 58 (1009-1012) 2002.

Peer Reviewed Conference Publications:

S. Supriya, S. Kumar and M. Kar, CFO-Graphene Composite for High Performance Electrode Material, Elsevier Materials Today: Conf. Proc. 4, 5651-5656 (2017).
S. Kumar, S. Supriya and M. Kar, The effect of sintering on the electrical properties of BaFe12O19, Elsevier Materials Today: Conf. Proc. 4, 5517-5524 (2017).
S. Kumar, S. Supriya and M. Kar, Electrical Properties of Barium Hexaferrites and Reduced Graphene Oxide Nanocomposite for Microwave Devices, IEEE Xplore Conf. Proc. (2016) (Accepted).
S. K. Pradhan, A. Kumar, N. Sinha, P. Kour, r. Pandey, P. Kumar and M. Kar “Enhanced dielectric constant and impedance of PVDF due to incorporation of PZT in its matrix” Digest Journal of Nanomaterials and Biostructures, Vol. 12, No. 1, January March 2017, p. 141-149.
S. Supriya , S.Kumar and M. Kar, CFO-Graphene Composite for High Performance Electrode Material, Elsevier Materials Today: Conf. Proc. (2016) (Accepted).
S. Kumar, S. Supriya and M. Kar, The effect of sintering on the electrical properties of BaFe₁₂O₁₉, Elsevier Materials Today: Conf. Proc. (2016) (Accepted)
S. Supriya, S. Kumar and M. Kar, Enhanced Dielectric of PVDFCoFe1.5Cr0.5O4 for Capacitor Application. AIP Conf. Proc. 2016 (Accepted).
S. Supriya, S. Kumar and M. Kar, Grain Size Effect on Activation Energy in Spinel CoFe2O4 Ceramic, AIP Conf. Proc. 1731, 110025 (2016).
S. Supriya, S. Kumar and M. Kar, Impedance spectroscopy studies in cobalt ferrite reduced graphene oxide nanocomposite, AIP Conf. Proc. 1728, 020566 (2016).
S. Kumar, S. Supriya, P. Kumar and M. Kar, Dielectric investigations on co-substituted bismuth ferrite (Bi1-xLaxFe1-xMnxO3), AIP Conf. Proc. 1728, 020578 (2016).
S. Kumar, S. Supriya and M. Kar, Electrical Properties of Barium Hexaferrites and Reduced Graphene Oxide Nanocomposite for Microwave Devices, IEEE Xplore Conf. Proc. (2016) (Accepted).
L. K. Pradhan, R. Pandey, and M. Kar. Existence of multi crystallographic phase in BNT-BTO solid solution near morphotropic phase boundary. AIP Conf. Proc. (2016) (Accepted)
R. Pandey, C. Panda, P. Kumar, L. K. Pradhan and M. Kar. Role of Grain and Grain Boundary on the Electrical and Thermal Conductivity of Bi_0.9Y_0.1Fe_0.9Mn_0.1O₃ Ceramics AIP Conf. Proc. (2016) (Accepted)
P. Kumar and M. Kar, Double Crystal Symmetries in Morphotropic Phase Boundary of Substituted BiFeO₃ Ceramics, AIP Conference Proceedings 1665, 050178 (2015).
P. Kour, S. K. Pradhan, P. Kumar, S. K. Sinha and M.Kar, “Enhanced ferroeletric and piezoelectric properties of Nd3+ doped PZT nanoceramics” AIP Conf. Proc. 1728, (2016) 020490 .
P. Kour, P. Kumar, M. Kar and S. K. Sinha, Enhance of Ferroelectric Properties by Modifying Pb²⁺ side by Mg ²⁺in PZT (52/48) Ceramics. AIP Conf. Proc. 1512 (2013) 1276.
C. Panda, P. Kumar and M. Kar,Structural Analysis and Electrical Properties of Bi_1-xLa_xFe_1-xTi_xO₃Ceramics. AIP Conf. Proc. 1512 (2013) 1286.
S. M. Borah, M. Kar and S. Ravi, Electrical Resistivity studies on Ca_0.95A_0.05MnO₃ Compounds (A = V, Nb, and Sn), Proceeding of DAE Solid State Physics Symposium, 46 (2004) 193.
S. K. Srivastava, M. Kar and S. Ravi,Spin glass behavior in in La(Mn_1-xCu_x)O₃ compounds.,Proceeding, DAE solid state symposium, 50 (2005) 825.
S. K. Srivastava, M. Kar and S. Ravi,Effect of Co Substitution on Crystal Structure and Magnetic Property of La_0.85Ag_0.15Mn_1-yCo_yO₃ (y = 0 to 1) Compounds., Proceeding, DAE solid state symposium, 51 (2006) 851.
S. K. Srivastava, M. Kar and S. Ravi,Reentrant Spin Glass Behavior in (La_0.85Ag_0.15)(Mn_0.85M_0.15)O₃ (M = Co, Cr), Proceeding, DAE solid state symposium, 52 (2007) 1017.
M. Kar, Electrical Resistivity and AC susceptibility Studies in PerovskiteManganites. Proceeding of DAE Solid State Physics Symposium, 49 (2004)812.
M. Kar and S. Ravi,Metal-Insulator Transitions in La_1-xCu_xMnO₃ Compounds, Proceeding of DAE Solid State Physics Symposium, 46 (2003) 891.
M. Kar and S. Ravi, Electrical Resistivity and Crystal Structure Studies on Ca(Mn_1-xCu_x)O₃ Compounds. Proceeding of DAE Solid State Physics, 44 (2001)473.
S. Ravi, M. Kar and G. Rangarajan,Study of M-H Loops on YNi₂B₂C Superconductors Using Critical State Model, Proceeding of DAE Solid State Physics Symposium, 43(2000) 428.

Conference Presentations:

R.Pandey, P.Kumar, L.K Pradhan, M.K. Zope and M. Kar. Effect of TI doping on crystal symmetries and magnetic properties of Bi_0.85La_0.15Fe₂O₃ ceramics. ICMAGMA (2017)
R. Pandey, L. K. Pradhan and M.Kar, Structural and dielectric investigation of Bi_1-xDyFe_1-xMn_xO₃.ICMST-2016, Kerala, June. 5-8 (2016)
R. Pandey, C. Panda, P. Kumar, L. K. Pradhan and M. Kar. Effect of structural transition on Magnetic properties of Y and Mn Co-doped BFO ceramic. ICMDA-2016(NIT Patna)
R. Pandey, L. K. Pradhan and M. Kar. Structural and Dielectric Investigation of Bi_1-xDy_xFe_1-xMn_xO₃. ICMST-2016(Dept. of Physics, ST. Thomas College, Palai, Kerala)
R. Pandey, L.K Pradhan and M. Kar. Study on oxide-ion conductivity in Ca modified Bismuth Ferrite (Bi0.95Ca0.05FeO3) multiferroic compound for solid oxide fuel cell application. ACSSI-2016 (IIT Patna).
L. K. Pradhan, R. Pandey, R. Kumar, P. Kumar and M. Kar, Composition driven magnetoelectric coupling in CFO-PZT nanocomposite, ICNAN-2016 (VIT University)
S. Kumar, S. Supriya and M. Kar, Dielectric Investigations on Li and Cr Substituted Nickel Oxide, 4th ICANN 2015, IIT Guwahati, Dec. 8-11, (2015).
L.K. Pradhan, R. Pandey, R. Kumar, P. Kumar and M. Kar, Structural and electrical properties of CFO and PZT multiferroic nanocomposite, 4th ICANN 2015, IIT Guwahati, Dec. 8-11, (2015).
R. Kumar, R. Pandey and M. Kar, Study of strain mediated magnetism on non-magnetic Sr substituted cobalt ferrite by employing the Arrott plot, ICMAGMA, Vellore University, Dec 2- Dec 4, (2015).
R. Kumar, A. M. Goswami and M. Kar, Increase of Dielectric Constant in PVDF by Incorporating La1.8Sr0.2NiO4 into its Matrix, International Conference on Condense matter and Applied physics, Bikaner, Oct 30-31, (2015).
S. Kumar, S. Supriya, P. kumar and M. Kar Dielectric Investigations on co-substituted Bismuth Ferrite (Bi_1-xLa_xFe_1-xMn_xO₃) ICC 2015, Bikaner, Rajasthan, Oct. 30-31, (2015).
S. Supriya, S. Kumar and M. Kar, Impedance Spectroscopy Studies in Cobalt Ferrite-Reduced Graphene Oxide Nanocomposite, ICC 2015, Bikaner, Rajasthan, 30-31 October, (2015).
R. Kumar, R. Pandey and M. Kar, Enhanced Magnetocrystalline anisotropy of Co_0.99Ca_0.01Fe₂O₄, Indo-Japan Workshop on Magnetism at Nanoscale, NISER Bhubaneswar Jan 9-Jan 12, (2015).
P. Kumar, A. K. Sinha, A. Sagdeo, M. N. Singh and M. Kar, Comparative study on oxygen octahedral tilting induced structural transition in co-substituted BiFeO₃ ceramics, 5^th conference on Neutron Scattering (CNS-2015); BARC Mumbai (Maharashtra), February 2-4, 2015.
P. Kumar, A. K. Sinha, A. Sagdeo, M. N. Singh and M. Kar, Comparative study on oxygen octahedral tilting induced structural transition in co-substituted BiFeO₃ ceramics, 5^th conference on Neutron Scattering (CNS-2015); BARC Mumbai (Maharashtra), February 2-4, 2015.
R. Kumar and M. Kar, Magnetic studies of nanocrystalline cobalt ferrite by Employing the Arrot plot, International Conference on Condense matter and Applied physics, Bikaner,Oct30-31, (2015).
S. Supriya, S. Kumar P. Kumar and M. Kar, Interplay between Cation Distribution and Dielectric relaxations in Cr-substituted Nanocrystalline Cobalt ferrite, NANOCON 2014, 3^rd international conference on Nanotechnology, Bharti Vidyapith University, Pune 30-31October, (2014).
S. Kumar, S. Supriya and M. Kar, Low Resistivity Measurement Techniques, Bihar ScienceConference, Patna University, Patna, 23-25 Dec. (2014).
S. Supriya, S. Kumar and M. Kar, Impedance Spectroscopy for Materials characterization, Bihar Science Conference, Patna University, Patna, 23-25 Dec. (2014).
R. Kumar and M. Kar, A topical review on magnetoelectric composite, Bihar Science Conference, Magadh Mahila College, Patna (2014)
R. Kumar, L. K. Pradhan and M. Kar, Photoluminiscence studies of Cobalt ferrite, IOQO, IIT Patna (2014).
P. Kumar, R. Kumar and M. Kar, Enhanced Magnetic Properties near MPB in Ho and Mn co-substituted Nanocrystalline BiFeO₃, NANOCON 2014, Pune (Maharastra) October 14-15, 2014.
L. Kumar, S. Kumari, V. Kumar, P. Kumar and M. Kar, Structural and Magnetic Properties of Rare Earth Substituted Nanocrystalline Cobalt Ferrite. International Conference on Electron Microscopy & XXXV Annual Meeting of Electron Microscope Society of India (EMSI-2014), University of Delhi, India, July 9-11, 2014.
P. Kumar and M. Kar, Raman Spectroscopy and Direct Band Gap Studies on co-substituted Bismuth Ferrite, IOQO-2014, IIT Patna, Nov 7-8, 2014.
M. Kar and P. Kumar, Multiple Crystal Symmetries in NanocrystallineBi_1-xNd_xFe_1-xMn_xO₃Multiferroics. ETCMP-2014. T. M. Bhagalpur University, Jan 17-18, 2014.
S. Greculeasa, V. Kuncser, G. Schinteie, L. Kumar, P. Kumar, B. Sahoo and M. Kar. Magnetic and Mössbauer spectroscopy study of Al and Mn substituted nanocrystalline Ni ferrites. Electroceramics XIV Conference, Romania, June 16-20, 2014.
P. Kour, P. Kumar, M. Kar and S. K. Sinha, Effect of Neodynium Doping on the Dielectric and Impendance of PZT Nanoceramics, IUMRS-ICA, 2013, IISc Bangalore, Dec 16-20, 2013
Pawan Kumar and M. Kar, Effect of Structural transition on Magnetic Properties of La and Mn co-substituted Bismuth Ferrite.,SPPS-2013, ISM Dhanbad, Nov 18-20, 2013.
P. Kumar, Rajnish Kumar and M. Kar, Enhanced Magnetic and Dielectric Properties of Ca²⁺ and Ti⁴⁺ co-doped Bismuth Ferrite..EEMR-2013. CSIR - Institute of Minerals and materials Technology, Bhubaneswar. Aug 12-13.
Lawrence Kumar, P. Kumar and M. Kar, Cations Distribution studies in Spinel Ferrites from XRD pattern by Rietveld Method.ICWNCN-2012. Delhi University. March 13-16, 2012.
Lawrence Kumar, P. Kumar and M. Kar, Influence of non-magnetic Substitution on the Cation Distribution, Crystal Structure and Magnetocrystalline Anisotropy of Nanocrystalline Spinel Cobalt Ferrite.ICNANO-2011, Delhi University. Dec 18-21 2011.
Lawrence Kumar, Pawan Kumar and M. Kar, Non-linear Behaviour of Coercivity to the Maximum Applied Magnetic Field in La Substituted Nanocrystalline Cobalt Ferrite, MagMA-2013, IIT Guwahati, Dec 05-07, 2013.
P. Kumarand M. Kar, Weak Ferromagnetism in Nd and Mncodoped BiFeO₃Multiferroic, MagMA-2013. IIT Guwahati, Dec 05-07, 2013.
P. Kumar and M. Kar, Ferromagnetism in Bismuth Ferrite by co-substitution on Bi and Fe sites,,CMDAYS 2013, 28-31 Aug-2013, NIT Rourkela.
P. Kour, P. kumar, S. K. Sinha & M. Kar, Dielectric and Impedance Properties of Sr²⁺ ion Modified PZT Ceramics, ,CMDAYS 2013, 28-31 Aug-2013, NIT Rourkela.
P. Kumar and M. Kar, Reduction of Leakage Current in Bismuth Ferrite by Creating Chemical Pressure in Lattice International Conference on frontiers in Energy, environment, health and Materials Science (EEMR-2013), 12-13 Aug-2013, IMMT, Bhubaneswar.
P. Kour, P. kumar, S. K. Sinha & M. Kar, Effect of Crystallite size on Dielectric and Impedance Property of PZT (52/48) Ceramics, International Conference on frontiers in Energy, environment, health and Materials Science (EEMR-2013), 12-13 Aug-2013, IMMT, Bhubaneswar.
L. Kumar, P. Kumar and M. Kar, Structural and Magnetic Properties in Nanocrystalline CoFe₂O_4., National Conference on. Recent Advances in Science for Technology. (RAST-2012). Feb 27-28, 2012.
C. Panda and M. Kar,Rietveld Analysis and Electrical Properties of Bi_1-xSm_xFe_1-xMn_xO₃ Ceramics. RTCST- 2012, IIT Patna, March 3-4, 2012.
P. Kaur, S. K. Sinha and M. Kar, Microstructure and ferroelectric Studies on Nanocrystalline La³⁺ substituted PZT. RTCST- 2012, IIT Patna, March 3-4, 2012.
L. Kumar, P. Kumar and M. Kar, Effect of Y³⁺Subsitution on the Structural and Magnetocrystalline Anisotropy of Nanocrystalline Cobalt Ferrite. RTCST- 2012, IIT Patna, March 3-4, 2012.
L. Kumar, P. Kumar and M. Kar,Cations Distribution studies in Spinel Ferrites from XRD pattern by Rietveld Method.ICWNCN-2012. Delhi University. March 13-16, 2012.
L. Kumar, P. Kumar and M. Kar, Crystal Structure and Magnetocrystalline Anisotropy Constant Studies on CoFe_1.5M_0.5O₄, M = Al & Cr.CMDAYS-2012. BIT Meshra, Ranchi. Aug 29-31, 2012.
C. Panda, P. Kumar and M. Kar,Rietveld Analysis and Electrical Properties of Samarium and Manganese Doped BiFeO₃ Ceramics.CMDAYS-2012. BIT Meshra, Ranchi. Aug 29-31, 2012.
S. Kumar, P. Kumar, A. R. Yadav, and M. Kar, Structural Characterization and Cation Distribution on Al Substituted Nickel Ferrite. CMDAYS-2012. BIT Meshra, Ranchi. Aug 29-31, 2012.
Enhancement of Dielectric Constant by Calcium Substitution in Nanocrystalline PZT Ceramics. P. Kour, S. K. Sinha, P. Kumar and M. Kar. CMDAYS-2012. BIT Meshra, Ranchi. Aug 29-31, 2012.
L. Kumar and M. Kar, Influence of La³⁺ Ion Concentration on the Magnetic Anisotropy of Nanocrystalline Spinel Cobalt Ferrite, NANOMAT-2011, Indian School of Mines Dhanbad, India, February 10-11, 2011.
L. Kumar and M. Kar,Effect of Annealing Temperature on Magnetic Anisotropy in Nanocrystalline Cobalt Ferrite, INTERMAG-2011, Taipei, Taiwan, April 25-29, 2011
L. Kumar and M. Kar, Structural and Magnetic Properties of Nanocrystalline La-substituted Cobalt Ferrite. International Conference on Materials for Advanced Technologies, Suntec, Singapore, 26 June-1 July, 2011, Page No. 147.
N. Sahu, M. Kar, and S.Panigrahi, Rietveld structural study, microstructure, dielectric and impedance properties of Fe³⁺ ion modified on Pb(Zr_0.65Ti_0.35)O₃Perovskite Ceramics. National seminar on physics and technology of Novel materials (PTNM-2010), Sambalpur University.
S. Panigrahi, N. Sahu and M. Kar, Enhancement of Conductivity in Fe³⁺ and Mn³⁺ modified Pb(Zr_0.65-xFe_xTi_0.35)O₃ ceramics, ICE-2011, Sydney, Australia.
N. Sahu, M. Kar & S.Panigrahi, Rietveld analysis of a single phase PbTiO₃. National Conference on Mechanism Science and Technology: from Theory to Application, November 13-14, 2008 National Institute of Technology, Hamirpur (H.P.) India -177005
N. Sahu, M. Kar & S.Panigrahi, Structural Transition and Rietveld Refinement on a Single Phase Nanocrystalline Pb_0.5Zr_0.5TiO₃ Ceramics. CONDENSED MATTER DAYS-2009(Symposium on condensed Matter Physics), 26-28th August 2009, Jadavpur University, Kolkata.
N. Sahu, S. Panigrahi and M. Kar, Structural change of Zr Doped PbTiO₃ Ceramics.International conference of electro ceramics 2009, Dec13-17, 2009 Delhi University.
S. K. Srivastava, M. Kar and S. Ravi, Effect of Co doping on the crystal structure, electrical transport and magnetic properties of (La_0.85Ag_0.15)(Mn_1-yCo_y)O₃. Presented in Latin-American Workshop 2007, Aug. 2007, Rio de Janeiro, Brazil
S. K. Srivastava, M. Kar and S. Ravi,Study of Electrical Transport, Magnetic Properties of La_0.85Ag_0.15Mn_1-xT_xO₃ (T=Co,Al). INSA-HAS Workshop 2006, Dec. 2006 Uni. Of Hyderabad, India
S. K. Srivastava, M. Kar and S. Ravi, Crystal Structure Studies on La_0.85Ag_0.15Mn_1-yAl_yO₃Compounds. Crystallography Conference 2007, March 2007, Chennai, India
M. Kar and K. Acharyya, Crystallite Size Determination by Using XRD. ACTON 2005, Page 37, IIT Roorkee.
A. K. Saha, M. Kar and S. Ravi, Characterization of La_0.85Ag_0.15(Mn_1-xCo_x)O₃ (x = 0 to 0.15) Compounds. NCMS-2005, (2005)CU Hyderabad.
M. Kar and S. Ravi, Study of Crystal Structure in La_1-xAg_xMnO₃ Compounds. X-ray Tech. in Res. and Industry (XTRI-2003), DMRL, Hyderabad, Dec. 3-5, 2003.
S. Ravi and M. Kar, Colossal Magneto-Resistivity in La_1-xAg_xMnO₃ Compounds. Recent Developments & Challenges in Physics (RDCP-2002), School of Physics, University of Hyderabad.

Special Training::

International Workshop on SciLab, a scientific package for computation. Held at IOPB, BBSR. Organized by Indo-French center.
International Workshop on X-ray diffraction. Held at IACS, Kolkata.
Workshop on neutron diffraction. Held at Bhabnagar University, Bhabnagar, Gujarat and BARC, Mumbai.
Awareness Workshop on “The Facilities of Inter University Consortium for DAE Facilities at Indore”. Held at Indian Institute of Technology Guwahati, Guwahati.
Two Months Spoken English Course, Sabari College, Chennai,
Rastravasa Hindi Kobida Pass, 1990

Organizing committee member::

RESPECT KVs, 7^th to 9^th April 2017, IIT Patna, Convener of the Workshop.
RESPECT KVs, 21^th to 23^rd October 2016, IIT Patna, Convener of the Workshop.
IOQO 2014, 7- 8^th Nov 2014, IIT Patna. Local Organizing Committee Member.
Orientation Course for Physics Teachers”, 01-07-2013, Organizing Secretary, IIT Patna
National symposium on Recent Trends in Chemical Science and Technology, RTCST 2012, IIT Patna.
Patent and IPR Workshop, 3rd March-2013, IIT Patna. Organizing Committee Member. 1st Convocation IIT Patna, 2012. Organizing committee member.
Instructional Workshop on Geometric Group Theory, December 2-15, 2002, Organizing committee member.
International Conference on Geometric Group Theory, December 15-21, 2002. Organizing committee member.
Work Shop: Awareness of DAE facilities, Held at IIT Guwahati, February-2004.
Instructional Workshop on Algebraic Graph Theory, December 9-18, 2004, Organizing committee member.
QIP short term course on “Cryogenic Engineering and Cryogenic Materials”, Dept of phys.
IIT Guwahati, Jun 20-24, 2005, Organizing committee member and invited speaker.
International Workshop on Treatment of Thermal Radiation in Heat Transfer Problems.
International Symposium on Recent Trends in Heat and Mass Transfer, IIT Guwahati, 2-3 January 2006, Organizing committee member.
18th National and 7th ISHMT/ASME Heat and Mass Transfer Conference, IIT Guwahati, 4-6 January 2006,Organizing Committee Member
2nd International Congress on Computational Mechanics and Simulation (ICCMS-06), 8-10 December 2006,IIT Guwahati, Organizing committee member
QIP short term course on Advanced experimental techniques, Dept. of Physics, IIT Guwahati,Feb., 6 - 11, 2006, Organizing committee member and invited speaker.
Inter IIT Sports meet Organizing Committee Member.
DST-PAC Meeting 2008, IIT Guwahati, 24-25 March-2008. Organizing Committee Member.

Seminars, Workshops, Summer schools, Conferences::

International Workshop on Scilab, a scientific package for computation. Held at IOPB, BBSR. Organised by Indo-French center. 2001
International Workshop on X-ray diffraction.IACS, Kolkata. 2002
Workshop on neutron diffraction. Bhabnagar University, Bhabnagar, Gujarat. 2002
Awareness Workshop on “The Facilities of Inter University Consortium forDAE Facilities at Indore”. Held at Indian Institute of Technology Guwahati. 2007

Accademics::

July 1999 to July 2004: Ph. D, Dept. of Physics, Indian Institute of Technology Guwahati, India
July 1996 to July 1998: M. Sc. Physics, F. M. College, Balasore.
July 1993 to July 1996: B. Sc. Physics, U. N. College, Soro, Balasore
June 1990-May1992: +2 Science, Bhadrakcollege, Bhadrak
June 1987-May 1990: High School, Jagannathpur High school
June 1985-May 1987: M. E. School, Jagannathpur M.E. school
June 1980-May 1985: U.P. School, Jagannathpur U. P. school

Academics

Dr. Manoranjan Kar