6 citations · 14 across the 6 of their papers we have counts for
6 papers
Probing the strongly correlated magnetic state of CoC nanoparticles at low temperatures using SR
Nirmal Roy, P C Mahato, Suprotim Saha +4
CoC nanoparticles (NPs) are amongst transition metal carbides whose magnetic properties have not been well explored. A recent study by Nirmal Roy et al. [1] showed that a colle…
Impact of Co2C Nanoparticles on Enhancing the Critical Current Density of Bi-2223 Superconductor
Md. Arif Ali, Sourav M Karan, Nirmal Roy +1
We have investigated the superconducting properties of nanocomposite pellets made from Bi-2223 and Co2C powders. There is loss of superconducting fraction in the nanocomposites, bu…
Spontaneous Electric Polarization in Graphene Polytypes
Simon Salleh Atri, Wei Cao, Bar Alon +8
A crystalline solid is a periodic sequence of identical cells, each containing one or more atoms. If the constituting unit cell is not centrosymmetric, charge may distribute uneven…
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…
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…
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…