3 papers
cond-mat.str-el2008
Novel insights into charge and spin pairing instabilities in nanoclusters
A. N. Kocharian, G. W. Fernando, K. Palandage +1
Electron pairing and ferromagnetism in various cluster geometries are studied with emphasis on tetrahedron and square pyramid under variation of interaction strength, electron dopi…
cond-mat.mtrl-sci2008
Efficient method to calculate total energies of large nanoclusters
M. Yu, R. Ramprasad, G. W. Fernando +1
We present an approach to calculate total energies of nanoclusters based on first principles estimates. For very large clusters the total energy can be separated into surface, edge…
cond-mat.str-el2007
Exact Thermodynamics of Pairing and Charge-spin Separation Crossovers in Small Hubbard Nanoclusters
A. N. Kocharian, G. W. Fernando, T. Wang +2
The exact numerical diagonalization and thermodynamics in an ensemble of small Hubbard clusters in the ground state and finite temperatures reveal intriguing insights into the nasc…