Electron Localization and Conduction Mechanism of Icosahedral Quasicrystal Al-Pd-Ru

Absence of fine structure in the photoemission spectrum of the icosahedral Al-Pd-Mn quasicrystal

The results of the low-temperature ultrahigh-energy-resolution photoemission studies of a single-grain icosahedral alloy Al70Pd21.5Mn8.5 have been presented. The existence of the theoretically predicted pseudogap in the density of states at the Fermi energy has been confirmed. No evidence of the theoretically predicted spikiness of the density of states could be observed. It has been suggested ...

X-ray diffuse scattering in the icosahedral quasicrystal Al-Pd-Mn

Y. Zhang, S. N. Ehrlich, R. Colella,* M. Kopecky, and M. Widom Department of Physics, Purdue University, West Lafayette, Indiana 47907-1396 Brookhaven National Laboratory, NSLS, Upton, New York 11973 Sincrotrone Trieste, SS 14-Km 163.5, Area Science Park, 34012 Basovizza Trieste, Italy Department of Physics, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213 ~Received 20 December 2001; ...

Icosahedral phase stabilities in Al-Cu-Ru alloys.

Low-temperature lattice excitation of icosahedral Al-Mn-Pd quasicrystals

We suggest a theoretical method for dealing with the contribution of phasons to the lattice vibration of quasicrystals. Based on this, we derive the density of vibrational states ~DOVS! and specific-heat expressions of the icosahedral Al-Mn-Pd quasicrystal, and obtain corresponding numerical solutions which are in agreement with the experimental data measured by Wälti et al. @Phys. Rev. B 57, 1...

Ordered oxide layers on decagonal Al-Co-Ni and icosahedral Al-Pd-Mn quasicrystals

Metal oxides display a variety of crystal structures which often are more complicated compared to the parent metals [1]. In particular, the oxide structures grown on ordered aluminum binary alloys have been an immense challenge for scientists since decades [2]. On NiAl(110), oxygen binds to Al and forms an atomically thin layer of super-cell epitaxy with a huge unit cell. We investigate the str...