Ferromagnetism and canted spin phase in AlAs/Ga1-xMnxAs single quantum wells:: Monte Carlo simulation

被引：34

作者：

Boselli, MA

Ghazali, A

Lima, ICD

机构：

[1] Univ Estado Rio De Janeiro, Inst Fis, BR-20500013 Rio De Janeiro, RJ, Brazil

[2] Univ Paris 07, Grp Phys Solides, Paris 05, France

[3] Univ Paris 06, Paris 05, France

来源：

PHYSICAL REVIEW B | 2000年 / 62卷 / 13期

关键词：

D O I：

10.1103/PhysRevB.62.8895

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The magnetic order resulting from a confinement-adapted Ruderman-Kittel-Kasuya-Yosida indirect exchange between magnetic moments in the metallic phase of a AlAs/Ga1-xMnxAs quantum well is studied by Monte Carlo simulation. This coupling mechanism involves magnetic moments and carriers (holes), both coming from the same Mn2+ ions. It leads to a paramagnetic, a ferromagnetic, or a canted spin phase; depending on the carrier concentration, and on the magnetic layer width. It is shown that high transition temperatures may be obtained.

引用

页码：8895 / 8902

页数：8

共 41 条

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