Magnetic phase diagram of doped CMR manganites
Strongly Correlated Electrons
2009-11-07 v1
Abstract
The magnetic phase diagram of the colossal magnetoresistance (CMR) manganites is determined based on the Hamiltonian incorporating the double-exchange (DE) interaction between degenerate Mn orbitals and the antiferromagnetic (AF) superexchange interaction between Mn spins. We have employed the rigorous quantum mechanical formalism and obtained the finite temperature phase diagram which describes well the commonly observed features in CMR manganites. We have also shown that the CE-type AF structure cannot be stabilized at =0.5 in this model.
Keywords
Cite
@article{arxiv.cond-mat/0209230,
title = {Magnetic phase diagram of doped CMR manganites},
author = {Unjong Yu and Yookyung Jo and B. I. Min},
journal= {arXiv preprint arXiv:cond-mat/0209230},
year = {2009}
}
Comments
2 pages, 1 figure; Transport and Thermal Properties of Advanced Materials(Aug. 2002; Hiroshima, Japan)