Data di Pubblicazione:
2005
Citazione:
Surface electron bands and Fermi surface of Be(0001) / I. Vobornik, J. Fujii, M. Mulazzi, G. Panaccione, M. Hochstrasser, G. Rossi. - In: PHYSICAL REVIEW. B, CONDENSED MATTER AND MATERIALS PHYSICS. - ISSN 1098-0121. - 72:16(2005), pp. 165424.1-165424.6.
Abstract:
The three surface electronic states of Be(0001) have different symmetry as probed by high-resolution angle resolved photoemission (ARPES) with variable polarization synchrotron radiation. We probed the two (ÎÌ-MÌ and ÎÌ-K) high symmetry directions and measured the Fermi surface cuts. Electron states of even or odd symmetry with respect to the crystal (and/or surface) mirror planes contribute to the photoemission intensity as a function of the light polarization and experimental geometry. The effects of the large surface relaxation of Be(0001) are directly reflected in the Fermi surface.
Tipologia IRIS:
01 - Articolo su periodico
Keywords:
Photoemission spectra; beryllium; expansion
Elenco autori:
I. Vobornik, J. Fujii, M. Mulazzi, G. Panaccione, M. Hochstrasser, G. Rossi
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