Revealing antiferromagnetic order of the Fe monolayer on W(001):: Spin-polarized scanning tunneling microscopy and first-principles calculations -: art. no. 087204

被引：118

作者：

Kubetzka, A

Ferriani, P

Bode, M

Heinze, S

Bihlmayer, G

von Bergmann, K

Pietzsch, O

Blügel, S

Wiesendanger, R

机构：

[1] Univ Hamburg, Inst Appl Phys, D-20355 Hamburg, Germany

[2] Univ Hamburg, Microstruct Res Ctr, D-20355 Hamburg, Germany

[3] Forschungszentrum Julich, Inst Festkorperforsch, D-52425 Julich, Germany

来源：

PHYSICAL REVIEW LETTERS | 2005年 / 94卷 / 08期

关键词：

D O I：

10.1103/PhysRevLett.94.087204

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We prove that the magnetic ground state of a single monolayer Fe on W(001) is c(2x2) antiferromagnetic, i.e., a checkerboard arrangement of antiparallel magnetic moments. Real space images of this magnetic structure have been obtained with spin-polarized scanning tunneling microscopy. An out-of-plane easy magnetization axis is concluded from measurements in an external magnetic field. The magnetic ground state and anisotropy axis are explained based on first-principles calculations.

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