3 papers
cond-mat.str-el2020
The Exchange Bias effect in pure Co2C nanoparticles
Nirmal Roy, Md. Arif Ali, Arpita Sen +2
We study the low temperature magnetic properties of nanoparticles of pure transition metal carbide, viz., Co2C, with an average particle diameter of nm. These Co2C nano…
cond-mat.mes-hall2020
Exploring the non-equilibrium fluctuation relation for quantum mechanical tunneling of electrons across a modulating barrier
Dibya J. Sivananda, Nirmal Roy, P. C. Mahato +1
We experimentally explore the phenomenon of electron tunneling across a modulated tunneling barrier which is created between an STM tip and an Au film deposited on a vibrating piez…
cond-mat.str-el2019
Localized spin waves at low temperatures in a Cobalt Carbide nanocomposite
Nirmal Roy, Arpita Sen, Prasenjit Sen +1
We study magnetic, transport and thermal properties of Cobalt carbide nanocomposite with a mixture of Co2C and Co3C phases in 1:1 ratio, with an average particle diameter of 40$\pm…