26 citations · 29 across the 4 of their papers we have counts for
9 papers
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…
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…
Hybrid ED/DMRG approach to the thermodynamics of 1D quantum models
Sudip Kumar Saha, Dayasindhu Dey, Manoranjan Kumar +1
Exact diagonalization (ED) of small model systems gives the thermodynamics of spin chains or quantum cell models at high temperature . Density matrix renormalization group (DMRG…
Haldane and Dimer phases in a frustrated spin chain: an exact groundstate and associated topological phase transition
Shaon Sahoo, Dayasindhu Dey, Sudip Kumar Saha +1
A Heisenberg spin- chain with alternating ferromagnetic () and antiferromagnetic () nearest-neighbor (NN) interactions, exhibits the Dimer and spin- Halda…
Spin-specific heat determination of the ratio of competing first- and second-neighbor exchange interactions in frustrated spin- chains
Dayasindhu Dey, Manoranjan Kumar, Siân E. Dutton +2
The magnetic susceptibility of spin-1/2 chains is widely used to quantify exchange interactions, even though is similar for different combinations of ferromagnetic $J…