66 citations · 208 across the 14 of their papers we have counts for
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Effective Charge and Spin Hamiltonian for the Quarter-Filled Ladder Compound -NaVO
Debanand Sa, C. Gros
An effective intra- and inter-ladder charge-spin hamiltonian for the quarter-filled ladder compound -NaVO has been derived by using the standard canonical transformatio…
A Generalized Ginzburg-Landau Approach to Second Harmonic Generation
Debanand Sa, R. Valenti, C. Gros
We develop a generalized Ginzburg-Landau theory for second harmonic generation (SHG) in magnets by expanding the free energy in terms of the order parameter in the magnetic phase a…
Anisotropic Spin-1/2 Heisenberg Chain with Open Boundary Conditions
P. de Sa, A. M. Tsvelik
We study the exact solution of the XXZ spin-1/2 Heisenberg chain with a boundary magnetic field in the region where the bulk excitations are gapless. It is shown that a bound state…
Effect of Single Particle Hopping and out of Plane Magnetic Impurity on Coupled Planar Superconductors
Manas Sardar, Debanand Sa
It is shown that the single particle band motion along the axis is harmful for superconductivity. Variation of with axis hopping parameter is shown for both the conve…