C. Batista

activity

19952026

most citedMagnetic Excitations in the Spin-1 Anisotropic Heisenberg Antiferromagnetic Chain System NiCl

_{2}

-4SC(NH

_{2}

)

_{2}

120 citations · 1.5k across the 42 of their papers we have counts for

collaborators

Showing 1998Show all

4 papers · 1 filter

cond-mat.str-el1998★ 12 cited

Angle resolved Cu and O photoemission intensities in CuO_2 planes

J. M. Eroles, C. D. Batista, A. A. Aligia

Using a mapping from the three-band extended Hubbard model for cuprate superconductors into a generalized t-J model, and exact diagonalization of the latter in a 4x4 cluster, we de…

cond-mat.str-el1998★ 21 cited

Spin dynamics of hole doped Y2BaNiO5

C. D. Batista, A. A. Aligia, J. Eroles

Starting from a multiband Hamiltonian containing the relevant Ni and O orbitals, we derive an effective Hamiltonian $H_{e f f}$ for the low energy physics of doped Y $_{2}$ BaNiO$_{5}.…

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-mat1998★ 23 cited

Electron-Doped Manganese Perovskites: The Polaronic State

C. D. Batista, J. M. Eroles, M. Avignon +1

Using the Lanczos method in linear chains we study the ground state of the double exchange model including an antiferromagnetic super-exchange in the low concentration limit. We fi…