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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
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- 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