149 citations · 528 across the 17 of their papers we have counts for
17 papers
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…
Room-temperature multiferroicity in GaFeO thin film grown on (100)Si substrate
Sudipta Goswami, Shubhankar Mishra, Kausik Dana +7
Room-temperature magnetoelectric multiferroicity has been observed in c-axis oriented GaFeO thin films (space group ), grown on economic and technologically important (…
Large structure-dependent room temperature exchange bias in self-assembled BiFeO3 nanoparticles
Sudipta Goswami, Aditi Sahoo, Dipten Bhattacharya +2
We studied the magnetic properties of self-assembled aggregates of BiFeO3 nanoparticles (~ 20-40 nm). The aggregates formed two different structures - one with limited and another…
Nonmonotonic particle-size-dependence of magnetoelectric coupling in strained nanosized particles of BiFeO
Sudipta Goswami, Dipten Bhattacharya, Chandan K. Ghosh +4
Using high resolution powder x-ray and neutron diffraction experiments, we determined the off-centered displacement of the ions within a unit cell and magnetoelectric coupling in n…
Origin of Ferroelectricity in Orthorhombic LuFeO
Ujjal Chowdhury, Sudipta Goswami, Amritendu Roy +13
We demonstrate that small but finite ferroelectric polarization (0.01 C/cm) emerges in orthorhombic LuFeO () at (600 K) because of commensurate (…