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Titolo:
Surface optical properties of clean Cu(110) and Cu(110)-(2 x 1)-O
Autore:
Stahrenberg, K; Hermann, T; Esser, N; Richter, W;
Indirizzi:
Tech Univ Berlin, Inst Festkorperphys, D-10623 Berlin, Germany Tech Univ Berlin Berlin Germany D-10623 perphys, D-10623 Berlin, Germany
Titolo Testata:
PHYSICAL REVIEW B
fascicolo: 4, volume: 61, anno: 2000,
pagine: 3043 - 3047
SICI:
1098-0121(20000115)61:4<3043:SOPOCC>2.0.ZU;2-8
Fonte:
ISI
Lingua:
ENG
Soggetto:
REFLECTANCE-DIFFERENCE SPECTROSCOPY; ANISOTROPY-SPECTROSCOPY; ELECTRONIC-STRUCTURE; NOBLE-METALS; OXYGEN; STATES; RECONSTRUCTION; CHEMISORPTION; PHOTOEMISSION; DIFFRACTION;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
--discip_EC--
Citazioni:
32
Recensione:
Indirizzi per estratti:
Indirizzo: Stahrenberg, K Tech Univ Berlin, Inst Festkorperphys, Hardenbergstr 36, D-10623 Berlin, Germany Tech Univ Berlin Hardenbergstr 36 Berlin Germany D-10623 y
Citazione:
K. Stahrenberg et al., "Surface optical properties of clean Cu(110) and Cu(110)-(2 x 1)-O", PHYS REV B, 61(4), 2000, pp. 3043-3047

Abstract

The surface optical and electronical properties of Cu(110) surfaces were studied by using reflectance anisotropy spectroscopy (RAS) together with angle-resolved photoemission spectroscopy (ARUPS). On the clean surface, a structure in the optical spectra at 2.1 eV is assigned to transitions between occupied p-type and unoccupied s-type surface states occurring at the (Y) over bar point of the surface Brillouin zone. Ar;other structure at 4.2 eV is associated with a transition at the (X) over bar point between a surface resonance (occupied) split off from the bulk d bands and a p-derived surface state (unoccupied). The oxygen-induced (2 X 1) surface exhibits a double peak in the reflectance anisotropy which can be explained partly by transitions from oxygen induced d- to empty p-derived states. Surface modified bulk d-states are responsible for parts of the features around 2 eV and features at higher energies.

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Documento generato il 20/01/21 alle ore 03:03:30