Surface electronic structure and magnetic properties of doped manganites

被引：115

作者：

Calderon, MJ ^{[1
]}

Brey, L

Guinea, F

机构：

[1] CSIC, Inst Ciencia Mat, E-28049 Madrid, Spain

[2] Univ Autonoma Madrid, Dept Fis Teor Mat Condensada, E-28049 Madrid, Spain

来源：

PHYSICAL REVIEW B | 1999年 / 60卷 / 09期

关键词：

D O I：

10.1103/PhysRevB.60.6698

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The electronic structure and magnetic properties of doped manganites surfaces are investigated. It is assumed that, at the outermost layer, the environment of the Mn ions does not have cubic symmetry. The e(g), orbitals are split and the double exchange mechanism is weakened. The charge state of the Mn ions is modified, and the magnetic ordering of the spins tends to be antiferromagnetic. The surface magnetization and the dependence of the transport properties through the resulting surface barrier on applied magnetic field and temperature is analyzed. [S0163-1829(99)02430-3].

引用

收藏

页码：6698 / 6704

页数：7

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