Elementary Excitations at Magnetic Surfaces and Their Spin Dependence

被引：23

作者：

Zhang, Y. ^{[1
]}

Ignatiev, P. A. ^{[1
]}

Prokop, J. ^{[1
]}

Tudosa, I. ^{[1
]}

Peixoto, T. R. F. ^{[1
,2
]}

Tang, W. X. ^{[1
,3
]}

Zakeri, Kh. ^{[1
]}

Stepanyuk, V. S. ^{[1
]}

Kirschner, J. ^{[1
]}

机构：

[1] Max Planck Inst Mikrostrukturphys, D-06120 Halle, Germany

[2] Univ Sao Paulo, Inst Fis, BR-05508090 Sao Paulo, Brazil

[3] Monash Univ, Sch Phys, Clayton, Vic 3800, Australia

来源：

PHYSICAL REVIEW LETTERS | 2011年 / 106卷 / 12期

关键词：

ENERGY-LOSS SPECTROSCOPY; ULTRATHIN FE; FILMS; SCATTERING; METALS;

D O I：

10.1103/PhysRevLett.106.127201

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The elementary surface excitations are studied by spin-polarized electron energy loss spectroscopy on a prototype oxide surface [an oxygen passivated Fe(001)-p(1 x 1) surface], where the various excitations coexist. For the first time, the surface phonons and magnons are measured simultaneously and are distinguished based on their different spin nature. The dispersion relation of all excitations is probed over the entire Brillouin zone. The different phonon modes observed in our experiment are described by means of ab initio calculations.

引用

页数：4

共 17 条

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