Regensburg 2010 – wissenschaftliches Programm

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O: Fachverband Oberflächenphysik

O 58: Surface chemical reactions II

O 58.5: Vortrag

Mittwoch, 24. März 2010, 16:00–16:15, H42

Electronic valence band structure of V₂O₅ — •Torsten Stemmler, Eric Meyer, and Recardo Manzke — Institut für Physik, Humboldt-Universität zu Berlin, Newtonstr. 15, 12489 Berlin

We present high-resolution ARPES measurements of V₂O₅ single crystals carried out with synchrotron radiation and He I resonance lamp. The obtained experimentally band structure in k parallel is compared with calculations, e.g.[1] and [2]. The aging behavior of different bands with time is studied. The degradation of the surface due to the high reactivity is discussed referring to the previous reported experimental work, e.g. [3] and [4].

[1] A.Chakrabarti et al., Phys. Rev. B59, 10583 (1999)

[2] V.Eyert et al., Phys. Rev. B57, 12727 (1998)

[3] S.Shin, Phys. Rev. B41, 4993 (1990)

[4] Q.Wu, Chem. Phys. Let. 430, 309 (2006)