Samrat Roy

activity

20192025

collaborators

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cond-mat.mes-hall2024

Anisotropic magneto-photothermal voltage in Sb2Te3 topological insulator thin films

Subhadip Manna, Sambhu G Nath, Samrat Roy +8

We studied longitudinal and Hall photothermal voltages under a planar magnetic field scan in epitaxial thin films of the Topological Insulator (TI) Sb2Te3, grown using pulsed laser…

cond-mat.mes-hall2020

Controlling helicity-dependent photocurrent in polycrystalline Sb $_{2}$ Te $_{2}$ Se topological insulator thin films at ambient temperature through wave-vector of and photothermal gradient due to polarized light

Samrat Roy, Subhadip Manna, Chiranjib Mitra +1

Optical control of helicity-dependent photocurrent in topological insulator Sb $_{2}$ Te $_{2}$ Se has been studied at room temperature on dominantly c-axis oriented granular polycrystalli…

cond-mat.mes-hall2019

Nonlinear optical responses of all-inorganic lead halide perovskite nanostructures by time-resolved beam-deflection technique

Samrat Roy, Arnab Mandal, Akshay Raj R. +2

We have investigated nonlinear refraction in all-inorganic halide perovskites, the CsPbBr $_{3}$ and CsPbBr $_{1.5}$ I $_{1.5}$ nanosheet and quantum dot colloids in toluene, by a novel…

Anisotropic magneto-photothermal voltage in Sb2Te3 topological insulator thin films

Controlling helicity-dependent photocurrent in polycrystalline Sb2​Te2​Se topological insulator thin films at ambient temperature through wave-vector of and photothermal gradient due to polarized light

Nonlinear optical responses of all-inorganic lead halide perovskite nanostructures by time-resolved beam-deflection technique

Controlling helicity-dependent photocurrent in polycrystalline Sb $_{2}$ Te $_{2}$ Se topological insulator thin films at ambient temperature through wave-vector of and photothermal gradient due to polarized light