6 papers
Light Polarization Sensitive Transistor Action in the van der Waals ferroelectric 4H-SnS2
Abhishek Bajgain, Rabindra Basnet, Subhashree Chatterjee +2
Van der Waals (vdW) ferroelectric semiconductors provide a unique platform for exploring the interplay between spontaneous polarization, electronic transport, ion migration, and ph…
Selenization of VO/WO Bilayers for Tuned Optoelectronic Response of WSe Films
Abhishek Bajgain, Santu Prasad Jana, Alexander Samokhvalov +3
Scalable and controlled doping of two-dimensional transition metal dichalcogenides is essential for tuning their electronic and optoelectronic properties. In this work, we demonstr…
Photoferroelectric Coupling and Polarization-Controlled Interfacial Band Modulation in van der Waal Compound CuInP2S6
Subhashree Chatterjee, Rabindra Basnet, Rajeev Nepal +1
Understanding how optical excitation couples with polarization and interfacial electrostatics in van der Waals (vdW) ferroelectrics (FEs) is essential for the development of light-…
Cr3+ spin dynamics under the octahedral crystal field in van der Waals antiferromagnets
Rabindra Basnet, Subhashree Chatterjee, Paul Kigaya +3
The magnetic moment in van der Waals (vdW) materials containing 3d transition metals originates from unpaired d-electron spins and their interaction with surrounding ligands. The i…
Enhanced negative capacitance in La-doped Pb(ZrTi)O ferroelectric capacitor from tuning of bias voltage pulse
Ganga S. Kumar, Sudipta Goswami, Subhashree Chatterjee +5
We report a remarkable bias voltage dependent specific negative capacitance in multidomain La-doped Pb(ZrTi)O (PLZT) ferroelectric capacitors. The specific nega…
Evidence of spin reorientation transition below 150 K from magnetic force microscopy in a ferromagnetic BiFeO thin film
Sudipta Goswami, Shubhankar Mishra, Kishor Kumar Sahoo +8
We investigated the magnetic transitions in BiFeO at low temperature (5-300 K) and observed nearly 90 rotation of magnetic domains (imaged by vertical magnetic force micros…