10 papers
Ferromagnetic Polarons in Manganites
C. D. Batista, J. Eroles, M. Avignon +1
Using the Lanczos method in linear chains we study the double exchange model in the low concentration limit, including an antiferromagnetic super-exchange K. In the strong coupling…
Photoemission Spectroscopy from Inhomogeneous Models of Cuprates
J. Eroles, G. Ortiz, A. V. Balatsky +1
We investigate the electronic dynamics in the underdoped cuprates focusing on the effects of one-dimensional charge stripes. We address recent experimental Angular-Resolved Photoem…
Microscopic Scenario for Striped Superconductors
J. Eroles, G. Ortiz, A. V. Balatsky +1
We argue that the superconducting state found in high- cuprates is inhomogeneous with a corresponding inhomogeneous superfluid density. We introduce two classes of microscopic…
Inhomogeneity-Induced Superconductivity?
J. Eroles, G. Ortiz, A. V. Balatsky +1
A t-J-like model for inhomogeneous superconductivity of cuprate oxides is presented, in which local anisotropic magnetic terms are essential. We show that this model predicts pairi…
Pairing in Inhomogeneous Superconductors
J. Eroles, G. Ortiz, A. V. Balatsky +1
Starting from a t-J model, we introduce inhomogeneous terms to mimic stripes. We find that if the inhomogeneous terms break the SU(2) spin symmetry the binding between holes is tre…
Does the Heisenberg model describe the multimagnon spin dynamics in antiferromagnetic CuO layers ?
J. Lorenzana, J. Eroles, S. Sorella
We compute the absorption spectrum for multimagnon excitations assisted by phonons in insulating layered cuprates using exact diagonalization in clusters of up to 32 sites. The res…