Double exchange interaction in CaMnO3-delta

被引：2

作者：

Briatico, J

Alascio, B

Allub, R

Butera, A

Caneiro, A

Causa, MT

Tovar, M

机构：

[1] COMIS NACL ENERGIA ATOM, INST BALSEIRO, RA-8400 San Carlos De Bariloche, ARGENTINA

[2] UNIV NACL CUYO, RA-8400 San Carlos De Bariloche, ARGENTINA

来源：

CZECHOSLOVAK JOURNAL OF PHYSICS | 1996年 / 46卷

关键词：

D O I：

10.1007/BF02570998

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We have measured electrical resistivity rho and magnetic susceptibility chi for CaMnO3-delta with 0 less than or equal to delta less than or equal to 0.34. Electron hopping between FM clusters formed around the O-vacancies due to double-exchange interaction lowers rho(T). An extension of the Anderson-Hasegawa model including the energy differences in crystalline Mn sites is presented. Comparison is made with the case of Y substitution for Ca.

引用

页码：2013 / 2014

页数：2

共 5 条

[1]

ALLUB R, IN PRESS

[2] CONSIDERATIONS ON DOUBLE EXCHANGE [J].