53 citations · 201 across the 16 of their papers we have counts for
10 papers · 1 filter
Phase separation instabilities and pairing modulations in
Kun Fang, G. W. Fernando, A. V. Balatsky +2
There is growing evidence that the unconventional spatial inhomogeneities in the doped high-Tc superconductors are accompanied by the pairing of electrons, subsequent quantum phase…
Quantum critical points and phase separation instabilities in Hubbard nanoclusters
A. N. Kocharian, Kun Fang, G. W. Fernando
Spontaneous phase separation instabilities with the formation of various types of charge and spin pairing (pseudo)gaps in Hubbard model including the {\it next nearest neighb…
Local electronic nematicity in the one-band Hubbard model
Kun Fang, G. W. Fernando, A. K. Kocharian
Nematicity is a well known property of liquid crystals and has been recently discussed in the context of strongly interacting electrons. An electronic nematic phase has been seen b…
Pairing enhancement in Betts lattices with next nearest neighbor couplings: Exact results
Kun Fang, Gayanath Fernando, Armen Kocharian
Electron instabilities in the Hubbard model with the next nearest neighbor coupling are calculated by exact diagonalization in finite, two-dimensional Betts cells (lattices). A via…
Electron coherent and incoherent pairing instabilities in inhomogeneous bipartite and nonbipartite nanoclusters
A. N. Kocharian, G. W. Fernando, K. Palandage +1
Exact calculations of collective excitations and charge/spin (pseudo)gaps in an ensemble of bipartite and nonbipartite clusters yield level crossing degeneracies, spin-charge separ…
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…