29 citations · 147 across the 17 of their papers we have counts for
17 papers
Unraveling the temperature-responsive charge-disproportionation in BaBiO
Sumit Sarkar, Priyanka Yadav, Sourav Chowdhury +2
This study shows that the charge disproportionation at the Bi site in BaBiO alters as a function of temperature. Decreasing the temperature from 300K down to 160K leads to a si…
Quantum Phase Transitions in Skewed Ladder Systems
Sambunath Das, Dayasindhu Dey, Rajamani Raghunathan +3
In this brief review, we introduce a new spin ladder system called skewed spin ladders and discuss the exotic quantum phases of this system. The spin ladders studied are the 5/7, 3…
Competing s-p and p-p fluctuations in charge-disproportionation of BaBiO3
Sumit Sarkar, Ram Janay Choudhary, Rajamani Raghunathan
Here we investigate the mechanism of charge-disproportionation (CD) in BaBiO3 (BBO) using density functional theory under different crystal symmetries and by employing strain as an…
Role of local structural distortions on the origin of j=1/2 pseudo-spin state in sodium iridate
Priyanka Yadav, Sumit Sarkar, Manju Sharma +3
Na2IrO3 (NIO) is known to be a spin-orbit (SO) driven j=1/2 pseudo-spin Mott-Hubbard (M-H) insulator. However, the microscopic origin of the pseudo-spin state and the role of local…
Magnetic structure and properties of a vanthoffite mineral Na6Mn(SO4)4
Ajana Dutta, Diptikanta Swain, A. K. Bera +5
A detailed analysis of the magnetic properties of a vanthoffite type mineral Na6Mn(SO4)4 basedon dc magnetization, low temperature neutron powder diffraction and theoretical calcul…
Role of electronic excitation on the anomalous magnetism of elemental Copper
Sudip Pal, Sumit Sarkar, Kranti Kumar +4
Magnetic susceptibility of elemental copper (Cu) shows an anomalous rise at low temperatures superimposed on the expected atypical diamagnetic response. Such temperature dependent…