Transport properties in Simplified Double Exchange model
Condensed Matter
2009-11-10 v2
Abstract
Transport properties of the manganites by the double-exchange mechanism are considered. The system is modeled by a simplified double-exchange model, i.e. the Hund coupling of the itinerant electron spins and local spins is simplified to the Ising-type one. The transport properties such as the electronic resistivity, the thermal conductivity, and the thermal power are calculated by using Dynamical mean-field theory. The transport quantities obtained qualitatively reproduce the ones observed in the manganites. The results suggest that the Simplified double exchange model underlies the key properties of the manganites.
Keywords
Cite
@article{arxiv.cond-mat/0309169,
title = {Transport properties in Simplified Double Exchange model},
author = {Phan Van-Nham and Tran Minh-Tien},
journal= {arXiv preprint arXiv:cond-mat/0309169},
year = {2009}
}
Comments
5 pages, 5 eps figures