Elementary Excitations at Magnetic Surfaces and Their Spin Dependence


Autoria(s): ZHANG, Y.; IGNATIEV, P. A.; PROKOP, J.; TUDOSA, I.; PEIXOTO, T. R. F.; TANG, W. X.; ZAKERI, Kh.; STEPANYUK, V. S.; KIRSCHNER, J.
Contribuinte(s)

UNIVERSIDADE DE SÃO PAULO

Data(s)

18/04/2012

18/04/2012

2011

Resumo

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.

CNPq-Brasil

DFG - Deutsche Forschungsgemeintschaft[SFB 762]

Identificador

PHYSICAL REVIEW LETTERS, v.106, n.12, 2011

0031-9007

http://producao.usp.br/handle/BDPI/16395

10.1103/PhysRevLett.106.127201

http://dx.doi.org/10.1103/PhysRevLett.106.127201

Idioma(s)

eng

Publicador

AMER PHYSICAL SOC

Relação

Physical Review Letters

Direitos

restrictedAccess

Copyright AMER PHYSICAL SOC

Palavras-Chave #ENERGY-LOSS SPECTROSCOPY #ULTRATHIN FE #FILMS #SCATTERING #METALS #Physics, Multidisciplinary
Tipo

article

original article

publishedVersion