192 citations · 1.3k across the 69 of their papers we have counts for
69 papers
Quantum phase transition in skewed ladders: an entanglement entropy and fidelity study
Sambunath Das, Dayasindhu Dey, S. Ramasesha +1
Entanglement entropy (EE) of a state is a measure of correlation or entanglement between two parts of a composite system and it may show appreciable change when the ground state (G…
Quantum phases of spin-1 system on 3/4 and 3/5 skewed ladders
Sambunath Das, Dayasindhu Dey, S. Ramasesha +1
We study the quantum phase transitions of frustrated antiferromagnetic Heisenberg spin-1 systems on the 3/4 and 3/5 skewed two leg ladder geometries. These systems can be viewed as…
Quantum phases of a frustrated spin-1 system: The 5/7 skewed ladder
Sambunath Das, Dayasindhu Dey, Manoranjan Kumar +1
The quantum phases in a spin-1 skewed ladder system formed by alternately fusing five- and seven-membered rings are studied numerically using the exact diagonalization technique up…
Study of magnetization relaxation in molecular spin clusters using an innovative kinetic Monte Carlo method
Sumit Haldar, S. Ramasesha
Modeling blocking temperature in molecular magnets has been a long standing problem in the field of molecular magnetism. We investigate this problem using a kinetic Monte Carlo (kM…
Magnetization plateaus of spin- system on a 5/7 skewed ladder
Dayasindhu Dey, Sambunath Das, Manoranjan Kumar +1
Magnetization plateaus are some of the most striking manifestations of frustration in low-dimensional spin systems. We present numerical studies of magnetization plateaus in the fa…
Magnetocaloric effect in molecular spin clusters and their assemblies: model exact and Monte Carlo studies
Sumit Haldar, S. Ramasesha
We study the magnetocaloric effect (MCE) in spin clusters of six spins with site spins , and for different exchange anisotropies. We also study MCE in an assembly of…