Considerations on the quantum double-exchange Hamiltonian
Strongly Correlated Electrons
2007-05-23 v1
Abstract
Schwinger bosons allow for an advantageous representation of quantum double-exchange. We review this subject, comment on previous results, and address the transition to the semiclassical limit. We derive an effective fermionic Hamiltonian for the spin-dependent hopping of holes interacting with a background of local spins, which is used in a related publication within a two-phase description of colossal magnetoresistant manganites.
Cite
@article{arxiv.cond-mat/0101234,
title = {Considerations on the quantum double-exchange Hamiltonian},
author = {A. Weisse and J. Loos and H. Fehske},
journal= {arXiv preprint arXiv:cond-mat/0101234},
year = {2007}
}
Comments
7 pages, 3 figures