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Transport properties in Simplified Double Exchange model

Phan Van-Nham·Tran Minh-Tien
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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.

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Phan Van-Nham, Tran Minh-Tien. 2003-09-09. Transport properties in Simplified Double Exchange model. https://doi.org/10.1142/s0217984903004853

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