E. Gagliano

activity

19941999

most citedAnomalous flux quantization in a Hubbard ring with correlated hopping

53 citations · 147 across the 9 of their papers we have counts for

collaborators

Showing cond-matShow all

5 papers · 1 filter

cond-mat1998★ 14 cited

Magnetic Raman Scattering of Insulating Cuprates

J. M. Eroles, C. D. Batista, S. B. Bacci +1

We study the $B_{1 g}$ and $A_{1 g}$ Raman profiles of M $_{2}$ Cu $O_{4}$ (with M= La, Pr, Nd, Sm, Gd), Bi $_{2}$ Sr $_{2}$ Ca $_{0.5}$ Y $_{0.5}$ Cu $_{2}$ O $_{8 + y}$ %, YBa $_{2}$ Cu $_{3}$ O$_{6.2}…

cond-mat1995★ 53 cited

Anomalous flux quantization in a Hubbard ring with correlated hopping

Liliana Arrachea, A. A. Aligia, E. Gagliano

We solve exactly a generalized Hubbard ring with twisted boundary conditions. The magnitude of the nearest-neighbor hopping depends on the occupations of the sites involved and the…

cond-mat1995★ 3 cited

Charge Transfer Excitons and Possible Exitonic Pairing in the Extended Three Band Hubbard Model

C. Vermeulen, W. Barford, E. R. Gagliano

Exact diagonalisations of the extended Hubbard model are performed. In the insulating regime it is shown that the nearest neighbour copper-oxygen repulsion, $V$ , leads to Frenkel e…

cond-mat1994

Large Phase Separation and Superconductivity in the Copper Oxide Chain

C. Vermeulen, W. Barford, E. R. Gagliano

The phase diagram of the copper-oxide chain as a function of density and the nearest-neighbour Coulomb interaction, V, is determined. Phase separation takes place above a critical…

cond-mat1994

Charge Transfer Excitons and the Metal-Insulator Transition in the High Temperature Superconductors

C. Vermeulen, W. Barford, E. R. Gagliano

The effects of the nearest neighbour Coulomb repulsion, V, are considered in the one dimensional copper-oxide chain using the modified Lanczos method. Above a critical value of V w…