Elementary Excitations at Magnetic Surfaces and Their Spin Dependence
Contribuinte(s) |
UNIVERSIDADE DE SÃO PAULO |
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Data(s) |
18/04/2012
18/04/2012
2011
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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 |
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 |