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

被引：32

作者：

Kobayashi, W ^{[1
]}

Terasaki, I

Mikami, M

Funahashi, R

Nomura, T

Katsufuji, T

机构：

[1] Waseda Univ, Dept Appl Phys, Tokyo 1698555, Japan

[2] Japan Sci & Technol Agcy, CREST, Tokyo 1080075, Japan

[3] Natl Inst Adv Ind Sci & Technol, Osaka 5638577, Japan

[4] Waseda Univ, Dept Phys, Tokyo 1698555, Japan

来源：

JOURNAL OF APPLIED PHYSICS | 2004年 / 95卷 / 11期

关键词：

D O I：

10.1063/1.1687532

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

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+/-1 mOmega cm and -79+/-3 muV/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 Mn3+ and Mn4+ ions. (C) 2004 American Institute of Physics.

引用

页码：6825 / 6827

页数：3