Electronic Band Dispersion and Pseudogap in Quasicrystals: Angular-Resolved Photoemission Studies on Icosahedral Al70Pd21.5Mn8.5
- Wu, X.
- Kycia, Stefan Walenty
- Olson, C. G.
- Benning, P. J.
- Goldman, Alan I.
- Lynch, David W.
Publication date
December 1995
DOI Publisher
Iowa State University Digital Repository ISSN
0031-9007 Language
EnglishAbstract
Angular-resolved photoelectron spectra from the fivefold surface of single-grain icosahedral Al70Pd21.5Mn8.5 exhibit a quasiperiodic dispersion of 300 meV at 2.3 eV binding energy. Low energy electron diffraction studies confirm quasicrystalline order at the surface. A distinct pseudogap feature is observed with a density of states near the Fermi level decreasing as a square-root power law
Add to ORKG