Wolter, K ; Scarano, D ; Fritsch, J ; Kuhlenbeck, H ; Zecchina, A ; Freund, H.-J
Alternative Links zum Volltext:DOIVerlag
| Dokumentenart: | Artikel |
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| Titel eines Journals oder einer Zeitschrift: | Chemical Physics Letters |
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| Verlag: | ELSEVIER SCIENCE BV |
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| Ort der Veröffentlichung: | AMSTERDAM |
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| Band: | 320 |
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| Nummer des Zeitschriftenheftes oder des Kapitels: | 1-2 |
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| Seitenbereich: | S. 206-211 |
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| Datum: | 2000 |
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| Institutionen: | Physik > Institut für Theoretische Physik |
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| Identifikationsnummer: | | Wert | Typ |
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| 10.1016/S0009-2614(00)00233-5 | DOI |
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| Stichwörter / Keywords: | ENERGY-ELECTRON DIFFRACTION; CO; SPECTROSCOPY; ALPHA-CR2O3; FILMS; CR2O3(111)/CR(110); CHROMIUM; FTIR; |
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| Dewey-Dezimal-Klassifikation: | 500 Naturwissenschaften und Mathematik > 530 Physik |
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| Status: | Veröffentlicht |
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| Begutachtet: | Ja, diese Version wurde begutachtet |
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| An der Universität Regensburg entstanden: | Ja |
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| Dokumenten-ID: | 74365 |
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Zusammenfassung
The vibration modes of a clean Cr2O3(0001) surface have been studied under ultra high vacuum conditions with high-resolution electron energy loss spectroscopy. A mode which is confined to the first few atomic layers of the oxide was detected in addition to the Fuchs-Kliewer phonons. In contrast to the Fuchs-Kliewer phonons which extend deeply into the hulk, this mode is very sensitive towards the ...
Zusammenfassung
The vibration modes of a clean Cr2O3(0001) surface have been studied under ultra high vacuum conditions with high-resolution electron energy loss spectroscopy. A mode which is confined to the first few atomic layers of the oxide was detected in addition to the Fuchs-Kliewer phonons. In contrast to the Fuchs-Kliewer phonons which extend deeply into the hulk, this mode is very sensitive towards the presence of adsorbates. Full-potential linearized augmented plane-wave calculations show that this mode is an in-phase oscillation of the second-layer oxygen atoms and the Cr atoms of the two layers below. (C) 2000 Published by Elsevier Science B.V. All rights reserved.
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