SearcharxivSearch

arXiv subjects

R. Funahashi

Publications and source records attributed to R. Funahashi.

2 recordsLinked to original sources

Universal charge transport of the Mn oxides in the high temperature limit

We have found that various Mn oxides have the universal resistivity and thermopower in the high temperature limit. The resistivities and thermopowers of all the samples go toward constant values of 7$\pm$1 m$Ω$cm and $-79\pm$3 $μ$V/K, which are independent of carrier density and crystal structures. We propose that the electric conduction occurs in a highly localized way in the high temperature limit, where the exchange of entropy and charge occurs in the neighboring Mn$^{3+}$ and Mn$^{4+}$ ions.

cond-mat.mtrl-sci