34 citations · 95 across the 7 of their papers we have counts for
7 papers
Quasi-one dimensional graphite ribbon structures in presence of magnetic field and on-site Coulomb correlation at half-filling
Jayeeta Chowdhury, Shreekantha Sil, S. N. Karmakar +1
We have presented the role of the Coulomb interaction () and the magnetic field () on the ground state properties of the quasi-one dimensional graphite ribbon structure…
Effect of external electric field on the charge density waves in one dimensional Hubbard superlattices
Jayeeta Chowdhury, S. N. Karmakar, Bibhas Bhattacharyya
We have studied the ground state of the one dimensional Hubbard superlattice structures with different unit cell sizes in the presence of electric field. Self consistent Hartree-Fo…
Ground state phase diagram and magnetoconductance of a one-dimensional Hubbard superlattice at half-filling
Jayeeta Chowdhury, S. N. Karmakar, Bibhas Bhattacharyya
We have studied a one dimensional Hubbard superlattice with different Coulomb correlations at alternating sites for a half-filled band. Mean field calculations based on the Hartree…
Enhancement of persistent current in mesoscopic rings $&$ cylinders : shortest $&$ next possible shortest higher order hopping
Santanu K. Maiti, J. Chowdhury, S. N. Karmakar
We present a detailed study of persistent current and low-field magnetic susceptibility in single isolated normal metal mesoscopic rings and cylinders in the tight-binding model wi…
Persistent currents with long-range hopping in 1D single-isolated-diffusive rings
Santanu K. Maiti, J. Chowdhury, S. N. Karmakar
We show from exact calculations that a simple tight-binding Hamiltonian with diagonal disorder and long-range hopping integrals, falling off as a power of the inter-site separa…
On the role of electron correlation and disorder on persistent currents in isolated one-dimensional rings
Santanu K. Maiti, J. Chowdhury, S. N. Karmakar
To understand the role of electron correlation and disorder on persistent currents in isolated 1D rings threaded by magnetic flux , we study the behavior of persistent currents…