Electron gas at the interface between two antiferromagnetic insulating manganites

被引：10

作者：

Calderon, M. J. ^{[1
]}

Salafranca, J. ^{[1
]}

Brey, L. ^{[1
]}

机构：

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

来源：

PHYSICAL REVIEW B | 2008年 / 78卷 / 02期

关键词：

D O I：

10.1103/PhysRevB.78.024415

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We study theoretically the magnetic and electric properties of the interface between two antiferromagnetic and insulating manganites: La0.5Ca0.5MnO3, a strong correlated insulator, and CaMnO3, a band insulator. We find that a ferromagnetic and metallic electron gas is formed at the interface between the two layers. We confirm the metallic character of the interface by calculating the in-plane conductance. The possibility of increasing the electron-gas density by selective doping is also discussed.

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页数：6

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