Spin-polarized states of matter on the surface of a three-dimensional topological insulator with implanted magnetic atoms

被引：11

作者：

Caprara, S. ^{[1
,2
]}

Tugushev, V. V. ^{[1
,3
]}

Echenique, P. M. ^{[1
,4
,5
]}

Chulkov, E. V. ^{[1
,4
,5
]}

机构：

[1] DIPC, San Sebastian 20018, Basque Country, Spain

[2] Univ Roma La Sapienza, Dipartimento Fis, I-00185 Rome, Italy

[3] RRC Kurchatov Inst, Moscow 123182, Russia

[4] Univ Basque Country, Fac Ciencias Quim, Dept Fis Mat, San Sebastian 20018, Basque Country, Spain

[5] Univ Basque Country, CSIC, Ctr Mixto, San Sebastian 20018, Basque Country, Spain

来源：

PHYSICAL REVIEW B | 2012年 / 85卷 / 12期

关键词：

FERROMAGNETISM;

D O I：

10.1103/PhysRevB.85.121304

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We describe the occurrence of a spin-polarized ferromagnetic state on the surface of a topological insulator with implanted 3d transition-metal atoms, within a model which takes into account the hybridization between the (s, p) orbitals of the insulator and the d orbitals of the metal, entailing the delocalized character of magnetic moments. Depending on the position of the Fermi level, the energy spectrum of this state displays both metallic and semimetallic, or semiconducting characteristics.

引用

页数：5