Department of Physics

Indian Institute Of Technology Madras , Chennai
Dr. Murugavel, P
HSB 116B
DESIGNATION

Associate Professor

Ph.D.

IISc Bangalore

CURRENT RESEARCH INTEREST

Ferroelectric and multifunctional oxides in bulk and thin films

CONTACT

044 - 2257 4897

muruga@iitm.ac.in

RESEARCH GROUPS

Dielectric Materials & Microwave Physics


 Current Research :



 Recent Publications :

Investigations on the effect of magnetic ordering on dielectric relaxation in polycrystalline GdMn1-xFexO3

A. Pal and P. Murugavel

Physica B: Condensed Matter

Volume: 555 Page: 99-105 DOI: https://doi.org/10.1016/j.physb.2018.11.057

Year: 2019

Investigations on the defect dipole induced pyroelectric current in multiferroic GdMnO3 system

A. Pal, C. Dhana Sekhar, A. Venimadhav, W. Prellier, and P. Murugavel

J. Appl. Phys.

Volume: 123 Page: 014102 DOI: 10.1063/1.5001245

Year: 2018

Dipole pinning effect on photovoltaic characteristics of ferroelectric BiFeO3 films

P. P. Biswas, Ch. Thirmal, S. Pal, and P. Murugavel

J. Appl. Phys.

Volume: 123 Page: 024101 DOI: doi.org/10.1063/1.5006311

Year: 2018

The role of precursors on piezoelectric and ferroelectric characteristics of 0.5BCT-0.5BZT ceramic

Atal Bihar Swain, V. Subramanian and P. Murugavel

Ceramics International

Volume: 44, 6861-6865 Page: 6861-6865 DOI: 10.1016/j.ceramint.2018.01.110

Year: 2018

Spin-flop and magnetodielectric reversal in Yb substituted GdMnO3

A Pal, W Prellier and P Murugavel

J. Phys. Condens. Matter.

Volume: 30 Page: 125801 DOI: 10.1088/1361-648X/aaad3a

Year: 2018

Giant photovoltaic response in band engineered ferroelectric perovskite

S.Pal, A.B. Swain, P.P. Biswas, D. Murali, A..Pal, B. R.K. Nanda and P. Murugavel

Scientific Reports

Volume: 8 Page: 8005 DOI: 10.1038/s41598-018-26205-x

Year: 2018

Impact of cationic vacancies on the physical characteristics of multiferroic GdMnO3

A. Pal and P. Murugavel

J. Appl. Phys.

Volume: 123 Page: 234102 DOI: 10.1063/1.5029509

Year: 2018

Impedance characteristics and PTCR effect in lead free BaTi1-xSnxO3 piezoceramics

Lakshmi Kola, Atal Bihari Swain, Martando Rath, M. S. R. Rao, and P. Murugavel

Materials Research Bulletin

Volume: 106 Page: 371-378 DOI: doi.org/10.1016/j.materresbull.2018.06.021

Year: 2018

Magnetocaloric effect in (La0.7Sr0.3MnO3 )(1-x) –(BaTiO 3 )x solid solution spin-glass system

C. Nayek, M. K. Ray, A. Pal, I. M. Obaidat, and P. Murugavel*

J. Mater. Sci.

Volume: 53 Page: 2405-2412 DOI: DOI 10.1007/s10853-017-1718-x

Year: 2018

Self-polarization effect on large photovoltaic response in lead free ferroelectric 0.5Ba(Zr0.2Ti0.8)O3-0.5(Ba0.7Ca0.3)TiO3 epitaxial film

A.B. Swain, Martando Rath, S. Pal, M.S.Ramachandra Rao, V. Subramanian and P. Murugavel

Appl. Phys. Lett.

Volume: 113 Page: 233902 DOI: doi: 10.1063/1.5068699

Year: 2018

Interface Control of Ferroelectricity in an SrRuO3/BaTiO3/SrRuO3 Capacitor and its Critical Thickness

Y.J. Shin, Y. Kim, S.-J. Kang, H.-H. Nahm, P. Murugavel, J. R. Kim, M. R. Cho, S.M. Yang, J. G. Yoon, J.S. Chung, S. H. Chang, and T. W. Noh

Adv. Mater.

Page: 1602795 DOI: 10.1002/adma.201602795

Year: 2017

Photovoltaic and photo-capacitance effects in ferroelectric BiFeO3 thin film

P. P. Biswas, Thirmal. Ch., Dhayanithi. D, V. N. Giridharan, V. Subramanian, and P. Murugavel

Appl. Phys. Lett.

Volume: 110 Page: 192906 DOI: [http://dx.doi.org/10.1063/1.4983378

Year: 2017

Investigating Size- and Temperature-Dependent Coercivity and Saturation Magnetization in PEG Coated Fe3O4 Nanoparticles

Chiranjib Nayek, Kaustuv Manna, Gourab Bhattacharjee, Pattukkannu Murugavel and Ihab Obaidat

Magnetochemistry

Volume: 3 Page: 19 DOI: doi:10.3390/magnetochemistry3020019

Year: 2017

Vibrational spectroscopic and computational studies on diisopropylammonium bromide

S. Sahoo, T.R. Ravindrana, S.Chandra, R.M. Sarguna, B.K. Das, C. Thirmal, P.Murugavel

Spectrochimica Acta Part A

Volume: 184 Page: 211-219 DOI: http://dx.doi.org/10.1016/j.saa.2017.05.006

Year: 2017

Effect of rare-earth doping on structural, electrical and impedance properties of BiFeO3 submicron particles

Chiranjib Nayek, I. M Obaidat, and P. Murugavel

Sci. Adv. Mater

Volume: 9 DOI: doi:10.1166/sam.2017.3128

Year: 2017

Tailoring of magnetic orderings in Fe substituted GdMnO3 bulk samples towards room temperature

A. Pal, C. Dhana Sekhar, A. Venimadhav and P. Murugavel

J. Phys. Condens. Matter

Volume: 29 Page: 405803 DOI: doi.org/10.1088/1361-648X/aa8083

Year: 2017

Study of ferroelectric characteristics of diisopropylammonium bromide films

C. Thirmal, P. P. Biswas, Y. J. Shin, T. W. Noh, N. V. Giridharan, A. Venimadhav, and P. Murugavel

J. Appl. Phys. 120, 124107 (2016)

Volume: 120 Page: 124107 DOI: 10.1063/1.4963754

Year: 2016

Spin-glass state in nanoparticulate (La0.7Sr0.3MnO3)1−x(BaTiO3)x solid solutions: Experimental and density-functional studies

C. Nayek, S. Samanta, Kaustuv Manna, A. Pokle, B. R. K. Nanda, P. S. Anil kumar, and P. Murugavel

Phys. Rev. B

Volume: 93 Page: 094401 DOI: doi.org/10.1103/PhysRevB.93.094401

Year: 2016

Non-isothermal crystallization kinetics and nanomechanical properties of poly(vinylidene fluoride)-La0.7Sr0.3MnO3 nanocomposite films

Ch. Thirmal, P. Panda, R. Ramaseshan, P. Murugavel

Adv. Sci. Eng. Med

Volume: 8 Page: 483 DOI: 10.1166/asem.2016.1877

Year: 2016

A study of magnetic ordering in multiferroic hexagonal Ho1- x Dy x MnO3

J. Magesh, P. Murugavel, J. Krishnamurthy, V. Adyam, and W. Prellier

J. Appl. Phys. 117 , 074104 (2015)

Year: 2015

Synthesis and Characterization of PVDF-La0.7Sr0.3MnO3 Nanocomposite films

Ch. Thirmal, P. Murugavel* and V. Subramanian

AIP conference proceedings

Volume: 1665 Page: 05011 DOI: DOI: 10.1063/1.4917652

Year: 2015

Impedance and magnetoelectric characteristics of (1-x)BaTiO3-xLa0.7Sr0.3MnO3 (x = 0.1 and 0.3) nano-composites

C.Nayek, P. Murugavel, S. Dinesh Kumar, and V. Subramanian

Appl. Phys. A

Volume: 120 Page: 615 DOI: 10.1007/s00339-015-9224-y

Year: 2015

Study of enhanced magnetism in Lu doped multiferroic bismuth ferrite

C. Nayek, Ch.Thirmal, A. Pal, P. Murugavel

Mater. Sci. Eng., B

Volume: 199 Page: 121-124 DOI: 10.1016/j.mseb.2015.06.002

Year: 2015

Ferroelectric ordering and magnetoelectric effect of pristine and Ho-doped orthorhombic DyMnO3 by dielectric studies

J. Magesh, P. Murugavel, R. V. K. Mangalam, K. Singh, Ch. Simon, and W. Prellier

J. Appl. Phys.

Volume: 118 Page: 074102 DOI: 10.1063/1.4928965

Year: 2015

Enhanced magnetic properties in low doped La1-xBaxMnO3 (x = 0, 0.1 and 0.2) nanoparticles

Rakesh Dhama, Chiranjib Nayek, Thirmal Ch.Thirmal, P. Murugavel*

J. Magn. Magn. Mater, 364,125-128 (2014).

Year: 2014

Role of oxygen vacancy and Fe-O-Fe bond angle in compositional, magnetic, and dielectric relaxation on Eu-substituted BiFeO3 nanoparticles”

A. Tamilselvan, S. Balakumar, M. Sakar, Chirajib Nayek, P. Murugavel and K. Saravan kumar

Dalton Trans. 43, 5731 (2014)

Year: 2014

Impedance spectroscopic analysis of the organic ferroelectric diisopropylammonium bromide (DIPAB)

Ch.Thirmal, P. Murugavel* and V. Subramanian

Current Appl. Phys. 14, 688 (2014).

Year: 2014

Origin of enhanced magnetization in rare earth doped multiferroic bismuth ferrite

Chiranjib Nayek, A. Tamilselvan, Ch. Thirmal, P. Murugavel* and S. Balakumar,

J. Appl. Phys. 115, 073902 (2014)

Year: 2014

Magnetic, dielectric and magnetodielectric properties of PVDF-La0.7Sr0.3MnO3 polymer nanocomposite films

Ch.Thirmal, Chirajib Nayek, P. Murugavel* and V.Subramanian

AIP Advances 3, 112109 (2013)

Year: 2013

Role of rare earth on the Mn3+ spin reorientation in multiferroic Ho1-xLuxMnO3

J. Magesh, P. Murugavel*, R.V.K. Mangalam, K. Singh, Ch.Simon and W.Prellier

J. Appl. Phys. 114, 094102 (2013)

Year: 2013

Effect of Europium Substitution on the Magnetic and Optical Properties of Nanostructured Bismuth Ferrite

A. Tamilselvan, M. Sakar, C. Nayek, P. Murugavel and S. Balakumar

AIP Conf. Proc. 1512, 1162 (2013)

Year: 2013

Magnetoelectric effect in La0.7Sr0.3MnO3–BaTiO3 core–shell nanocomposite

Chiranjib Nayek, Kishor Kumar Sahoo, and P. Murugavel*

Materials Research Bulletin 48, 1308-1311 (2013).

Year: 2013

Study of magnetodielectric effect in hexagonal Ho1−xDyxMnO3

J. Magesh, P. Murugavel*, K.V.R. Mangalam, K.Singh, Ch,Simon, and W. Prellier

J. Appl. Phys. 112, 104116-1-4 (2012).

Year: 2012

Strong enhancement of magnetoelectric coupling in Dy3+ doped HoMnO3

J. Magesh, P. Murugavel*, K.V.R. Mangalam, K.Singh, Ch,Simon, and W. Prellier

Appl. Phys. Lett. 101, 022902-1-3 (2012).

Year: 2012

Ferroelectric Properties of Multiferroic Hexagonal ErMnO3 Thin Films

Seung Yup Jang, Daesu Lee and Jung-Hyuk Lee, P. Murugavel, and Jin-Seok Chung

J. Korean. Phys. Soc. 55, 841-845 (2009)

Year: 2009

Structure and ferroelectric properties of epitaxial (1-x)BiFeO3-xBaTiO3 solid solution films

P. Murugavel*, J.H. Lee, J.Y. Yo, Hye Yeong Sim, J-S. Chung, Younghun Jo, and Myung-Hwa Jung,

J. Phys.: Condens. Matter 20, 415208-1-6 (2008)

Year: 2008

Optical spectroscopic investigation on the coupling of electronic and magnetic structure in multiferroic hexagonal RMnO3 (R=Gd, Tb, Dy, and Ho) thin films

W.S.Choi, S.J. Moon, S.S.A. Seo, Daesu Lee, J.H. Lee, P. Murugavel, and T.W. Noh

Phys. Rev. B 78, 054440-1-6 (2008)

Year: 2008

Electronic structures of hexagonal RMnO3 (R=Gd, Tb, Dy, and Ho) thin films: Optical spectroscopy and first-principles calculations

W.S. Choi, D.G. Kim, S.S.A. Seo, S.J. Moon, Daesu Lee, J. H. Lee, H. S. Lee, D. Y. Cho, Y.S. Lee, P. Murugavel, J. Yu, and T.W. Noh,

Phys. Rev. B 77, 045137-1-7 (2008).

Year: 2008

Growth behavior of artificial hexagonal GdMnO3 thin films”, J. Crystal Growth, 310, 829-835 (2008)

Daesu Lee, J.H. Lee, S. Y. Yang, P. Murugavel, Y.D. Ko, and J.S. Chung

J. Crystal Growth, 310, 829-835 (2008)

Year: 2008

Ferroelectricity driven by Y d0-ness with Re-hybridization in YMnO3

D. Y. Cho, J. Y. Kim, B. G. Park, K. J. Rho, J. H. Park, H. J. Noh, H. J. Kim, S. J. Oh, H. M. Park, J. S. Ahn, H. Ishibashi, S. W. Cheong, J. H. Lee, P. Murugavel, T. W. Noh, A. Tanaka, and T. Jo

Phys. Rev. Lett. 98, 217601-1-4 (2007)

Year: 2007

Multiferroic properties of epitaxially stabilized hexagonal DyMnO3 thin films

J. H. Lee, P. Murugavel, D. Lee, T. W. Noh, Y. Jo, M. H. Jung, K. H. Jang and J.-G. Park

Appl. Phys. Lett. 90, 012903-1-3 (2007)

Year: 2007

Formation of hexagonal phase of TbMnO3 thin film and its multiferroic properties

J.H.Lee, D.Lee, T.W.Noh, P.Murugavel, J.W.Kim, K.H. Kim, Y. Jo, M.H.Jung, J.G. Yoon, and J. S. Chung,

J. Mater. Res. 22, 2156-2162 (2007).

Year: 2007

Physical properties of multiferroic hexagonal HoMnO3 thin films

P. Murugavel, J.H. Lee, D. Lee, T. W. Noh, Y.H. Jo, M. W Jung, Y. S. Oh, and K. H. Kim

Appl. Phys. Lett. 90, 142902 (2007).

Year: 2007

Epitaxial stabilization of artificial hexagonal GdMnO3 thin films and their magnetic properties

D. Lee, J. H. Lee, P. Murugavel S. Y. Jang, T. W. Noh, Y. Jo, and M. H. Jung

Appl. Phys. Lett. 90, 182504 (2007).

Year: 2007

Effect of oxygen pressure on the interface related magnetic and transport properties of La0.7Ca0.3MnO3/BaTiO3 superlattices

P. Murugavel, P. Padhan, and W. Prellier

J. Phys.: Condens. Matter. 18, 3377 (2006).

Year: 2006

Epitaxial Stabilization of a New Multiferroic Hexagonal Phase of TbMnO3 Thin Films

J. H. Lee, P. Murugavel, H. Ryu, D. Lee, J. Y. Jo, J. W. Kim, H. J. Kim, K. H. Kim, Y. Jo, M. H. Jung, Y. H. Oh, Y. W. Kim, J. G. Yoon, J. S. Chung and T. W. Noh

Adv. Mater. 18, 3125-3129 (2006)

Year: 2006

Magnetoelectric effects of nanoparticulate Pb(Zr0.52Ti0.48)O3-NiFe2O4 composite films

H. J. Ryu, P. Murugavel, J. H. Lee, S. C. Chae, T. W. Noh, Y. S. Oh, H. J. Kim, K. H. Kim, J. H. Jang, M. Kim, C. Bae, and J.-G. Park

Appl. Phys. Lett. 89, 102907 (2006)

Year: 2006

The magnetotransport properties of La0.7Ca0.3MnO3/BaTiO3 superlattices grown by pulsed laser deposition technique

P. Murugavel and W. Prellier

J. Appl. Lett. 100, 023520 (2006).

Year: 2006

Effect of Orbital Rotation and Mixing on the Optical Properties of Orthorhombic RMnO3 (R = La, Pr, Nd, Gd, and Tb)

M. W. Kim, S. J. Moon, J. H. Jung, J. Yu, S. Parashar, P. Murugavel, and T. W. Noh

Phys. Rev. Lett. 96, 247205 (2006).

Year: 2006

A Brillouin study of the temperature-dependence of the acoustic modes across the metal-insulator transitions in V2O3 and Cr-doped V2O3

Md. Motin Seikh, Chandrabhas Narayana, A. K. Sood, P. Murugavel, M.W. Kim, P. A. Metcalf, J. M. Honig and C. N. R. Rao

Solid State Comm. 138, 466 (2006).

Year: 2006

The role of ferroelectric-ferromagnetic layers on the properties of superlattice-based multiferroics

P. Murugavel, M.P. Singh, W. Prellier, B. Mercey, Ch. Simon, and B. Raveau

J. Appl. Phys. 97, 103914 (2005).

Year: 2005

Ferromagnetism and metal-like transport in antiferromagnetic insulator heterostructures

P. Padhan, P. Murugavel, and W. Prellier

Appl. Phys. Lett. 87, 022506 (2005).

Year: 2005

Growth and characterization of CoFe2O4-BaTiO3 composite thin films

S. C. Chae, P. Murugavel, H. J. Rue, J. H. Lee and T. W. Noh

J. Korean Phys. Soc. 47, S345 (2005).

Year: 2005

The single-phase multiferroic oxides: from bulk to thin film

W. Prellier, M. P. Sing and P. Murugavel

J. Phys. C: Condens. Matter. 17, R803 (2005).

Year: 2005

Enhanced magnetoresistance in ferromagnetic Pr0.85Ca0.15MnO3/ferroelectric Ba0.6Sr0.4TiO3 superlattice films

P. Murugavel, P. Padhan, and W. Prellier

Appl. Phys. Lett. 85, 4992 (2004).

Year: 2004

Tailoring of ferromagnetic Pr0.85Ca0.15MnO3/ferroelectric Ba0.6Sr0.4TiO3 superlattices for multiferroic properties

P. Murugavel, D. Saurel, W. Prellier, Ch. Simon, and B. Raveau

Appl. Phys. Lett. 85, 4424 (2004).

Year: 2004

Origin of the 2eV peak in optical absorption spectra of LaMnO3: An explanation based on the orbitally degenerate Hubbard model

M. W. Kim, P. Murugavel, Sachin Parashar, J. S. Lee, and T. W. Noh

New J. Phys. 6, 156 (2004)

Year: 2004

Thickness dependent and annealing effects of underdoped lanthanum manganite thin films grown on Si substrates

P. Murugavel, J. G. Yoon, and T. W. Noh

J. Appl. Phys. 95, 2536 (2004).

Year: 2004

Origin of metal-insulator transition temperature enhancement in under-doped lanthanum manganite films

P. Murugavel, J.H. Lee, J.-G. Yoon, J.S. Chung, M. Heu, S. Yoon and T. W. Noh

Appl. Phys. Lett. 82, 1908 (2003).

Year: 2003

Magnetic properties of lanthanum orthoferrite fine powders prepared by different chemical routes

Benedict Ita, P. Murugavel, V. Ponnambalam and A.R. Raju

Proc. Indian Acad. Sci. (Chem. Sci.), 115, 519 (2003).

Year: 2003

Effects of oxygen annealing on the physical properties and surface microstructures of La0.8Ba0.2MnO3 films

P. Murugavel, J. H. Lee, K.-B Lee, J. H. Park, J.-S. Chung, J.-G. Yoon and T. W. Noh

J. Phys. D: Appl. Phys. 35, 3166 (2002).

Year: 2002

A study of ferroelectric thin films deposited on a LaNiO3 barrier electrode by nebulized spray pyrolysis

P. Murugavel, Rajat Sharma, A. R. Raju and C. N. R. Rao

J. Phys. D: Appl. Phys., 33, 906 (2000)

Year: 2000

Magnetic excitations in charge-ordered Nd0.5Ca0.5MnO3 : A Brillouin scattering study

P. Murugavel, Chandrabhas Narayana, Ajay K. Sood, Sachin Parashar, A. R. Raju and C. N. R. Rao

Euro Phys. Lett., 52, 461 (2000).

Year: 2000

A Brillouin scattering study of the quasi-one-dimensional blue bronze, K0.3MoO3

P. Murugavel, Chandrabhas Narayana, Ajay K. Sood and C. N. R. Rao

J. Phys. C: Condens. Matter. 12, L225 (2000).

Year: 2000

Brillouin Scattering from C70 and C60 films: A comparative study of elastic properties

P. Murugavel, Chandrabhas Narayana, A. Govindaraj, Ajay K. Sood and C. N. R. Rao

Chem. Phys. Lett., 331, 149 (2000).

Year: 2000

Preparation and characterization of sub-micron spherical particles of Al2O3, SiO2 and mullite

P. Murugavel, M. Kalaiselvam, M. K. Renganathan, A. R. Raju

Mater. Chem. Phys., 53, 247 (1998).

Year: 1998

Crystalline alumina films prepared by nebulized spray pyrolysis

P. Murugavel, Benedict Ita and A. R. Raju

Bull. Mater. Sci., 107 (1998).

Year: 1998

Sub-micrometer spherical particles of TiO2, ZrO2 and PZT by nebulized spray pyrolysis of metal-organic precursors

P. Murugavel, M. Kalaiselvam. A.R. Raju and C. N. R. Rao

J. Mater. Chem., 7(8), 1433 (1997).

Year: 1997

Synthesis and role of Nd and Sm on the microwave dielectric properties of BaNd2(1-x)Sm2xTi5O14 dielectric resonator

V. Satheesh, P. Murugavel, V. R. K. Murthy, B. Viswanathan

Mater. Sci. and Engg., B48, 202 (1997).

Year: 1997