Department of Physics

Indian Institute Of Technology Madras , Chennai
Prof. Venkatachalam Subramanian
HSB 223
DESIGNATION

Professor

Ph.D.

IIT Madras

CURRENT RESEARCH INTEREST

Microwave Materials, Devices, Propagation; Photonic Crystals and Metamaterials, Multiferroics

CONTACT

044 - 2257 4883

manianvs@iitm.ac.in

RESEARCH GROUPS

Dielectric Materials & Microwave Physics


 Current Research :



 Recent Publications :

Large converse magnetoelectric effect in Sm doped Pb(Mg1/3Nb2/3)-PbTiO3 and NiFe2O4 laminate composite

Dinesh Kumar, Shashaank Gupta, Atal Bihari Swain, V.Subramanian, Myoor K.Padmanabhan and Roop L.Mahajan

Journal of Alloys and Compounds

Volume: 858 Page: 157684 DOI: doi.org/10.1016/j.jallcom.2020.157684

Year: 2021

Substantial magnetoelectric response in 2/3[Pb(Mg1/3Nb2/3)O3]-1/3[PbTiO3]-CoFe2O4 Composites

Ganesha Channagoudra, Ajay Kumar Saw, Koushik Dey, Deepa Xavier, Venkatesh R., V. Subramanian, D.K.Shukla, Vijaylakshmi Dayal

Journal of Alloys and Compounds

Volume: 863 Page: 158504 DOI: doi.org/10.1016/j.jallcom.2020.158504

Year: 2021

Strain transfer in ferroelectric-ferrimagnetic magnetoelectric composite

Sujoy Saha, Ram Prakash Singh, Ying Liu, Atal Bihari Swain, Amritesh Kumar, V. Subramanian, A. Arockiarajan, G. Srinivasan, and Rajeev Ranjan

Physical Review B

Volume: 103 Page: L140106

Year: 2021

Enhanced shielding of electromagnetic radiations with flexible, light-weight, and conductive Ag-Cu/MWCNT/rGO architected PVDF nanocomposite films

Kumaran Rengaswamy, Vinaya Kumar Asapu, Alagar Muthukaruppan, Dinesh Kumar Sakthivel, Subramanian Venkatachalam, Dinakaran Kannaiyan

Polymers for Advanced Technologies

Volume: 32(9) Page: 3759 DOI: doi.org/10.1002/pat.5395

Year: 2021

Absorption enhanced EMI shielding using silver decorated three-dimensional porous architected reduced graphene oxide in polybenzoxazine matrix

R. Kumaran, A. Vinaya kumar, S. Ramaprabhu, V. Subramanian

New Journal of Chemistry

DOI: 10.1039/D1NJ03536C

Year: 2021

Miniaturized metamaterial absorber based on a high permittivity substrate

Anjali Murugan, Lincy Stephen, V Subramanian

Journal of Applied Physics

Volume: 130 Page: 113104 DOI: doi.org/10.1063/5.0060696

Year: 2021

Anisotropic asymmetric transmission of circularly polarized terahertz waves in a three dimensional spline assembly

C. K. Amaljith, C. Venkateswaran, V. Subramanian, Zhengbiao Ouyang and N. Yogesh

Optics Letters

Volume: 45 Page: 2315-2318 DOI: https://doi.org/10.1364/OL.388646

Year: 2020

Engineering resonance modes for enhanced magnetoelectric coupling in bilayer laminate composites for energy harvesting applications

Atal Bihari Swain, S. Dinesh Kumar, V.Subramanian and P.Murugavel

Phys. Rev. Applied

Volume: 13 Page: 024026 DOI: https://link.aps.org/doi/10.1103/PhysRevApplied.13.024026

Year: 2020

Polarization driven self-biased and enhanced UV - visible photodetector characteristics of ferroelectric thin film

Biswas Pranab, Pal Subhajit, Subramanian V, Murugavel Pattukkannu

Journal of Physics D: Applied Physics

Volume: 53 Page: 275302

Year: 2020

Fabry-Perot modes associated with hyperbolic-like dispersion in dielectric photonic crystals and demonstration of a bending angle sensor at microwave frequencies

R. Rachel Darthy, C. Venkateswaran, V. Subramanian, Zhengbiao Ouyang and N. Yogesh

Scientific Reports

Volume: 10 Page: 11117 DOI: doi.org/10.1038/s41598-020-67965-9

Year: 2020

Large magnetoelectric coupling in 0.5Ba(Zr0.2Ti0.8)O3-0.5(Ba0.7Ca0.3)TiO3 film on Ni foil

Atal Bihari Swain, Martando Rath, Dinesh Kumar S, M S Ramachandra Rao, V Subramanian and P Murugavel

Journal of Physics D: Applied Physics

Volume: 52 Page: 065004

Year: 2019

Beam steering based on coordinate transformation of Fermat spiral configurations

G. Vasantharajan, N. Yogesh, V. Subramanian

AIP Advances

Volume: 9 Page: 075217 DOI: doi.org/10.1063/1.5045489

Year: 2019

Realization of Bidirectional, Bandwidth-Enhanced Metamaterial Absorber for Microwave Applications

Lincy Stephen, N. Yogesh, V. Subramanian

Scientific Reports

Volume: 9(1) Page: 10058 DOI: www.nature.com/articles/s41598-019-46464-6

Year: 2019

Novel Phase Based Feedback Control for Constant Height Mode Operation in Scanning Near-Field Microwave Microscopy

Christopher Hardly Joseph, Venkatachalam Subramanian

Studies in Applied Electromagnetics and Mechanics - Ebook

Volume: 44: Electromagnetic Nondestructive Evaluation XXII Page: 20-25 DOI: 10.3233/SAEM190005

Year: 2019

Studies on magnetoelectric coupling in lead-free [(0.5)BCT-(0.5)BZT]-NiFe2O4 laminated composites at low and EMR frequencies

NSSowmya, ASrinivas, PSaravanan, KVGReddy, SVKamat, JPaul Praveen, Dibakar Das, GMurugesan, SDinesh Kumar, VSubramanian

Journal of Alloys and Compounds

Volume: 743 Page: 240-248

Year: 2018

Broadband Asymmetric Transmission of Linearly Polarized Electromagnetic Waves Based on Chiral Metamaterial

Lincy Stephen, N. Yogesh, V. Subramanian

Journal of Applied Physics

Volume: 123(3) Page: 033103

Year: 2018

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

Atal BihariSwain, V.Subramanian, P.Murugavel

Ceramic International

Volume: 44(6) Page: 6861-6865

Year: 2018

Enhanced magnetoelectric coupling in Ti and Ce substituted lead free CFO-BCZT laminate composites

J. Paul Praveen, Vinitha Reddy Monaji, E. Chandrakala, Srinivas Indla, S. Dinesh kumar, V. Subramanian, Dibakar Das

Journal of Alloys and Compounds

Volume: 750 Page: 392-400 DOI: 10.1016/j.jallcom.2018.04.026

Year: 2018

Temperature dependent magnetoelectric studies in co-fired bilayer laminate composites

S. Dinesh Kumar, J. Magesh and V. Subramanian

Journal of Alloys and Compounds

Volume: 753 Page: 595-600 DOI: Accepted for Publication

Year: 2018

Electromagnetic Interference (EMI) shielding performance of lightweight Metal decorated Carbon nanostructures dispersed Polyvinylidene fluoride flexible films

Rengaswamy, Kumaran; Sakthivel, Dinesh Kumar; Muthukaruppan, Alagar; Balasubramanian, N.; Venkatachalam, Subramanian; Kannaiyan, Dinakaran

New Journals of Chemistry

Volume: 42 Page: 12945 - 12953

Year: 2018

Origin of Relaxor Behavior in 0.78(Na0.5Bi0.5)TiO3-0.2SrTiO3-0.02BaTiO3 Ceramic: An electrical modulus study

S.Praharaja, V.Subramanian, S.-J. L.Kang, D.Rout

Materials Research Bulletin:

Volume: 106 Page: 459 - 464 DOI: https://doi.org/10.1016/j.materresbull.2018.06.041

Year: 2018

Enhanced magnetoelectric response from lead-free (Ba0.85 Ca0.15)(Zr0.1Ti0.9)O3 - CoFe2O4 laminate and particulate composites

Paul J Praveen, Vinithareddi Monaji, Dinesh Kumar, V Subramanian and Dibakar Das

Ceramic International

Volume: 44(4) Page: 4298-4306 DOI: 10.1016/j.ceramint.2017.12.018

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

Atal Swain, Martando Rath, Subhajit Pal, M.S. Ramachandra Rao, Venkatachalam Subramanian, and Pattukkannu Murugavel

Applied Physics Letters

Volume: 113 Page: 233902 DOI: https://doi.org/10.1063/1.5068699

Year: 2018

Magnetoelectric coupling studies on (x)(0.5BZT-0.5BCT)-(100-x)NiFe2O4 [x=90-70wt%] particulate composite

N Shara Sowmya, A Srinivas, K Venu Gopal Reddy, J Paul Praveen, Dibakar Das, S Dinesh Kumar, V Subramanian, SV Kamat

Ceramics International

Volume: 43 Page: 2523-2528

Year: 2017

Low temperature Raman scattering study of barium doped lead ytterbium tantalate ceramics

D Rout, S Praharaj, V Subramanian, V Sivasubramanian

Journal of Advanced Dielectrics

Volume: 1750003

Year: 2017

Tuning of bandwidth by superposition of bending and radial resonance modes in bilayer laminate composite

S. Dinesh Kumar, J. Magesh, V. Subramanian

Journal of Materials and Design

Volume: 122 Page: 315-317

Year: 2017

Polar nano regions in lead free (Na0.5Bi0.5)TiO3-SrTiO3-BaTiO3 relaxors: An impedance spectroscopic study

S. Praharaj, D. Rout, S. Anwar, V. Subramanian, V. Sivasubramanian

Journal of Alloys and Compounds

Year: 2017

Photovoltaic and photo-capacitance effects in ferroelectric BiFeO3 thin film

Pranab Parimal Biswas, Thirmal Chinthakuntla, Dhayanithi Duraisamy, Giridharan Nambi Venkatesan, Subramanian Venkatachalam, Pattukkannu Murugavel

Applied Physics Letters

Volume: 110 Page: 192906 DOI: 10.1063/1.4983378

Year: 2017

Classical ferroelectric like behavior of highly ordered Pb(Sc1/2Nb1/2)O3 studied by dielectric and Brillouin scattering spectroscopy

V. Sivasubramanian, V. Subramanian, S. Kojima

Physical Review B

Volume: 93 Page: 54115

Year: 2016

Electrocaloric effect in (1-x) PIN-xPT relaxor ferroelectrics

G. Ramesh, M.S. Ramachandra Rao, V. Sivasubramanian. V. Subramanian

Journal of Alloys and Compounds

Volume: 663 Page: 444-448

Year: 2016

Study of relaxor behavior in a lead-free (Na0.5 Bi0.5) TiO3-SrTiO3-BaTiO3 ternary solid solution system

S Praharaj, D Rout, V Subramanian, S J L Kang

Ceramic International

Volume: 42 Page: 12633-12671

Year: 2016

Synthesis, characterization, and magneto-electric properties of (1- x) BCZT-xCFO ceramic particulate composites

John Paul Praveen, Monaji Vinitha Reddy, Jayant Kolte, S Dinesh Kumar, V Subramanian, Dibakar Das

International Journal of Applied Ceramic Technology

Year: 2016

Enhanced Electromagnetic Interference Shielding in a Au-MWCNT Composite Nanostructure Dispersed PVDF Thin Films

R Kumaran, S Dinesh Kumar, N Balasubramanian, M Alagar, V Subramanian, K Dinakaran

Journal of Physical Chemistry C

Volume: 120 Page: 13771-13778

Year: 2016

Ag induced electromagnetic interference shielding of Ag-graphite/PVDF flexible nanocomposites

R. Kumaran, M. Alagar, S. Dinesh Kumar, V. Subramanian, K. Dinakaran

Applied Physics Letters

Volume: 107 Page: 11307

Year: 2015

BMFO-PVDF electrospun fiber based tunable metamaterial structures for electromagnetic interference shielding in microwave frequency region

V. Revathi, Kumar, S. Dinesh Kumar, V. Subramanian, C. Muthamizhchelvan

The European Physical Journal Applied Physics

Volume: 72 Page: 20402

Year: 2015

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

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

Applied Physics A

Volume: 120 Page: 615-622

Year: 2015

Enhanced self-biased direct and converse magnetoelectric effect in Pb (In1/2Nb 1/2)O3-PbTiO3/NiFe2O4 bi-layer laminate composite

S Dinesh Kumar, G Ramesh, V Subramanian

Journal of Materials Science: Materials in Electronics

Volume: 26 Page: 2682-2687

Year: 2015

Relaxor-like Ferroelectric behaviour favoured by Short-Range B-site ordering in 10% Ba2+ Substituted MgFe2O4

P. Chitra lekha, G. Ramesh, V. Revathy, V. Subramanian, T.S. Natarajan

Materials Research Bulletin

Year: 2014

Structural, Dielectric and Magnetic Studies on Electrospun Magnesium Ferrite-Polyvinylidene Fluoride Core-Shell Composite Fiber

V. Revathy, P. Chitra lekha, Dinesh Kumar, C. Muthamizhchelvan, T. S. Natarajan, V. Subramanian

Acta Metallurgica Sinica (English Letters)

Year: 2014

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

Ch. Thirmal, P. Murugavel, V. Subramanian

Current Applied Physics

DOI: 10.1016/j.cap.2014.02.018

Year: 2014

Effect of quenching rate on the structure, ion transport, and crystallization kinetics in lithium-rich phosphate glass

Prashant Dabas, V. Subramanian, K. Hariharan

Journal of Materials Science

DOI: 10.1007/s10853-013-7686-x

Year: 2013

Beam Steering at Higher Photonic Bands and Design of a Directional Cloak Formed by Photonic Crystals

N. Yogesh and V. Subramanian

Advanced Electromagnetics

Volume: 2 Page: 85

Year: 2013

Cross polarization converter formed by rotated-arm-square chiral metamaterial

R. Rajkumar, N. Yogesh, V. Subramanian

Journal of Applied Physics

Volume: 114 Page: 224506

Year: 2013

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

Ch. Thirmal, Chiranjib Nayek, P. Murugavel, V. Subramanian

AIP Advances

Volume: 3 Page: 112109

Year: 2013

Evolution of polar order in (1−x)Pb(In1/2Nb1/2)O3-xPbTiO3 (0≤x≤1) system as investigated by dielectric and Raman spectroscopy

G. Ramesh, V. Subramanian, V. Sivasubramanian

Journal of Applied Physics

Volume: 113 Page: 074101

Year: 2013

Magnetic structure and magnetodielectric effect of YFe0.5Cr0.5O3

Vidhya G. Nair, A. Das, V. Subramanian, P. N. Santhosh

Journal of Applied Physics

Volume: 113 Page: 213907

Year: 2013

Dielectric and piezoelectric properties of (0.90-x) PIN-xPT-0.10PZ ternary system near morphotropic phase boundary

G. Ramesh, V. Subramanian, V. Sivasubramanian

Journal of Electroceramics

Volume: 31 Page: 309

Year: 2013

Long range B-site cation ordering and Briet–Wigner–Fano line shape of A1g-like Raman mode in Nd1−xSmx(Mg0.5Ti0.5)O3 microwave dielectric ceramics

S. Roopas Kiran, G. Santosh Babu, Chandrabhas Narayana, V.R.K. Murthy, V. Subramanian

Materials Research Bulletin

Volume: 48 Page: 194

Year: 2013