Department of Physics

Indian Institute Of Technology Madras , Chennai

Recent Publications

# Titles Authors Journal Year
91 Space charge limited conduction in anatase and mixed-phase (anatase/rutile) single TiO2 nanotubes Sourav Kumar Kajli, Debdutta Ray, Somnath C Roy Physica E: Low-dimensional Systems and Nanostructures

Page: 115030 DOI: doi.org/10.1016/j.physe.2021.115030

2021
92 Efficient UV-visible Photodetector Based on Single CuO/Cu2O Core-shell Nanowire Sourav Kumar Kajli, Debdutta Ray, Somnath C Roy Journal of Alloys and Compounds

Page: 162546 DOI: doi.org/10.1016/j.jallcom.2021.162546

2021
93 Linear-in- T resistivity from semiholographic non-Fermi liquid models Benoît Douçot, Ayan Mukhopadhyay, Giuseppe Policastro, and Sutapa Samanta Phys. Rev. D

Volume: 104 Page: L081901 DOI: 10.1103/PhysRevD.104.L081901

2021
94 Quasinormal modes of a semi-holographic black brane and thermalization Sukrut Mondkar, Ayan Mukhopadhyay, Anton Rebhan, and Alexander Soloviev JHEP 11 (2021) 080

DOI: 10.1007/JHEP11(2021)080

2021
95 Localized thermal spike driven morphology and electronic structure transformation in swift heavy ion irradiated TiO2 nanorods Sutapa Dey, A Chakraborty, S B Mishra, N Khatun, A Hazra, B R K Nanda, C Sudakar, D Kabiraj, S C Roy Nanoscale Advances

DOI: 10.1039/D1NA00666E.

2021
96 Effect of tidal curvature on dynamics of accelerated probes Hari K, Dawood Kothawala Phys. Rev. D

Volume: 104 DOI: 10.1103/PhysRevD.104.064032

2021
97 Pinwheel valence bond crystal ground state of the spin-1/2 Heisenberg antiferromagnet on the shuriken lattice N. Astrakhantsev, F. Ferrari, N. Niggemann, T. Müller, A. Chauhan, ... and Y. Iqbal Physical Review B (Letters) [Editors' Suggestion]

Volume: 104 Page: L220408 DOI: 10.1103/PhysRevB.104.L220408

2021
98 Investigation of internal fields in organic semiconductors in the presence of traps Subhamoy Sahoo, Rajdeep Dhar, Soumya Dutta, and Jayeeta Bhattacharyya Journal of Applied Physics

Volume: 130 Page: 085702 DOI: doi.org/10.1063/5.0058515

2021
99 Spatial Extent of Interaction between Excitons and Polarons in a Bilayer Organic Field-Effect Transistor Haripriya Kesavan, Subhamoy Sahoo, Sanjoy Jena, Jayeeta Bhattacharyya, and Debdutta Ray ACS Photonics

Volume: 8 Page: 804

2021
100 Continuous rotational motion in birefringent particles using two near-orthogonally polarized optical tweezers beams at different wavelengths with low ellipticity Rahul Vaippully, Muruga Lokesh and Basudev Roy Journal of Optics

Volume: 23 Page: 094001

2021
101 Estimation of motional parameters using emission from upconverting nanoparticles optically trapped at the absorption resonance Kumar, Amrendra; Gunaseelan, M.; Vaidya, Gaurav; Vaippully, Rahul; Roy, Basudev European Physical Journal Special Topics

2021
102 Calcium-channel blockers exhibit divergent regulation of cancer extravasation through the mechanical properties of cancer cells and underlying vascular endothelial cells Vaibavi Ramanujam, Manoj S., Rahul Vaippully, Privita Edwina, Basudev Roy and Saumendra Bajpai Cell Biophysics and Biochemistry

2021
103 Estimation of rolling work of adhesion at the nanoscale with soft probing using optical tweezers Muruga Lokesh, Rahul Vaippully, Gokul N, Srestha Roy, Vidya P. Bhallamudi, Anil Prabhakar and Basudev Roy RSC Advances

Volume: 11 Page: 34636

2021
104 Realisation of pitch-rotational torque wrench in two-beam optical tweezers Muruga Lokesh, Rahul Vaippully, Vidya P. Bhallamudi, Anil Prabhakar and Basudev Roy Journal of Physics Communications

Volume: 5 Page: 115015

2021
105 Ferromagnetism in Mn doped 3C-SiC: A variable temperature ESR study Gyanti Prakash Moharana, S.K. Singh, Harish Kumar Narayanan Journal of Magnetism and Magnetic Materials

Volume: 527 Page: 167707 DOI: doi.org/10.1016/j.jmmm.2020.167707

2021
106 Penetrant-Induced Glass-like Transition in Thin Chitosan Films Aathira Murali, Manikandan Ganesan, Dillip K. Satapathy*, P. B. Sunil Kumar* Journal of Physical Chemistry B

Volume: 125 Page: 12617 DOI: doi.org/10.1021/acs.jpcb.1c07903

2021
107 Binding, unbinding and aggregation of crescent-shaped nanoparticles on nanoscale tubular membranes Eric J. Spangler, Alexander D. Olinger, P. B. Sunil Kumar and Mohamed Laradji Soft Matter

Volume: 17 Page: 1016 DOI: doi.org/10.1039/D0SM01642J

2021
108 Varying without varying: Reparameterisations, Diffeomorphisms, General Covariance, Lie derivatives, and all that Dawood Kothawala Eur. J. Phys.

Volume: 42 DOI: 10.1088/1361-6404/ac0105

2021
109 Large electrocaloric effect and energy storage performance of site-engineered lead-free Ba1-x(Bi0.5Li0.5)xTiO3 ferroelectric oxides S. Pal, P. P. Biswas, M. Rath, M S R. Rao, M. Miryala, M. Murakami and P. Murugavel J. Phys. D: Appl. Phys.

Volume: 54 Page: 045302 DOI: doi.org/10.1088/1361-6463/abbeb4

2021
110 Study of thermometry in two-dimensional Sb2Te3 from temperature dependent Raman Spectroscopy Manavendra P. Singh, Manab Mandal, K. Sethupathi, M.S. Ramachandra Rao, Pramoda K. Nayak Nanoscale Research Letters

Volume: 16 Page: 22 DOI: 10.1186/s11671-020-03463-1

2021
111 Numerical study using finite element method for heat conduction on heterogeneous materials with varying volume fraction, shape and size of fillers Anuraag Saini, Sreedhar Unnikrishnakurupa, C.V.Krishnamurthy, Krishnan Balasubramanian, T.Sundararajan International Journal of Thermal Sciences

2021
112 Bulk photovoltaic effect in BaTiO3-based ferroelectric oxides: An experimental and theoretical study Subhajit Pal, S. Muthukrishnan, Banasree Sadhukhan, Sarath N. V., D. Murali, and P. Murugavel* J. Appl. Phys.

Volume: 129 Page: 084106 DOI: doi.org/10.1063/5.0036488

2021
113 Electronic structure of graphene/TiO2 interface: Design and functional perspectives Shashi B Mishra, Somnath C Roy, BRK Nanda Applied Surface Science

Volume: 542 Page: 148709 DOI: doi.org/10.1016/j.apsusc.2020.148709

2021
114 Morphology dependent electrical conduction and breakdown in single TiO2 nanotubes Sourav K Kajli, Debdutta Ray, Somnath C Roy Nanoscale Advances

Volume: 3 Page: 432 DOI: doi.org/10.1039/d0na00713g

2021
115 Hydrothermal temperature-controlled size and distribution of CeO2 nanoparticles over TiO2 nanorods: heterojunction characteristics and photoelectrochemical performance Sutapa Dey, Somnath C Roy Ceramics International

Volume: 47(10) Page: 14603 DOI: doi.org/10.1016/j.ceramint.2021.02.043

2021
116 Designing TiO2 nanostructures through hydrothermal growth: influence of process parameters and substrate position Sutapa Dey, Somnath C Roy Nano Express

Volume: 2 Page: 010028 DOI: doi.org/10.1088/2632-959X/abe844

2021
117 Anomalous diameter dependent electrical transport in individual CuO nanowire Sourav K Kajli, Debdutta Ray, Somnath C Roy Journal of Physics D: Applied Physics

Volume: 54(25) Page: 255104 DOI: doi.org/10.1088/1361-6463/abeeb8

2021
118 Development of short and long-range magnetic order in the double perovskite based frustrated triangular lattice antiferromagnet Ba2MnTeO6 J. Khatua, T. Arh, Shashi B. Mishra, H. Luetkens, A. Zorko, B. Sana, M. S. Ramachandra Rao, B. R. K. Nanda, P. Khuntia* Scientific Reports (Nature Publications)

Volume: 11 Page: 6959 DOI: 10.1038/s41598-021-84876-5

2021
119 Thermal transport across wrinkles in few-layer graphene stacks Akash Mohapatra, S. Das, K. Majumdar, MSR Rao, and Manu Jaiswal Nanoscale Advances

Volume: 3 Page: 1708 DOI: 10.1039/D0NA00944J

2021
120 Radiative rate inhibition in fluorescent nanodiamonds-microcavity system Tulika Agrawal, Shubhayan Bhattacharya, Vijay Kumar Sagar and Prem B. Bisht J. Luminescence 234 (2021) 117963-71. Details:

2021