Journal or Book Title
Physical Review B
We present a study of the surface of the ξ′-Al-Pd-Mn approximant phase based upon scanning tunneling microscopy and low-energy electron diffraction. Several structures are observed on two different samples grown either by the Bridgman technique or by a self-flux method, and which contain various degrees of disorder. We also describe some other complex crystalline phases that are sometimes observed on the fivefold surface of Al-Pd-Mn quasicrystalline samples after the sputter-annealing cleaning process under ultrahigh vacuum conditions. This includes the T approximant phase resulting from surface decomposition after a high-temperature annealing.
American Physical Society
Fournée, V.; Ross, A. R.; Lograsso, Thomas A.; Anderegg, James W.; Dong, C.; Kramer, Matthew J.; Fisher, I. R.; Canfield, Paul C.; and Thiel, Patricia A., "Surface structures of approximant phases in the Al-Pd-Mn system" (2002). Chemistry Publications. 41.