Abstract
Valence-band photoemission from the s-p region of the tenfold and the two inequivalent twofold surfaces of quasicrystalline decagonal Al 72.8Ni14.8Co13.4 reveals strongly dispersing bands. These exhibit a free-electron-like dispersion along quasiperiodic and periodic directions of the decagonal quasicrystal. The experimental photoemission maps are reproduced in detail by a model in which parabolic bands emanate from a set of reciprocal lattice vectors. A parity rule for the principal zone centers is observed.
| Item Type: | Journal article |
|---|---|
| Faculties: | Geosciences > Department of Earth and Environmental Sciences > Crystallography and Materials Science |
| Subjects: | 500 Science > 550 Earth sciences and geology |
| Language: | English |
| Item ID: | 18563 |
| Date Deposited: | 10. Mar 2014 14:10 |
| Last Modified: | 29. Apr 2016 09:15 |
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