TY - JOUR
T1 - Surface structure and structural transition of decagonal Al-Ni-Co quasicrystal
AU - Shimoda, M.
AU - Guo, J. Q.
AU - Sato, T. J.
AU - Tsai, A. P.
N1 - Funding Information:
The authors thank Dr H. Takakura and Dr S. Tsukamoto for useful and stimulating discussions. This work is partly supported by CREST, Japan Science and Technology Corporation.
PY - 2000/5/20
Y1 - 2000/5/20
N2 - X-ray photoelectron diffraction (XPD) and reflection high-energy electron diffraction (RHEED) measurements have been performed to investigate the surface structure of the decagonal Al72Ni12Co16 quasicrystal, which is known as a two dimensional quasicrystal. RHEED patterns for the surface parallel to the quasiperiodic planes are almost identical to the selected area electron diffraction (SAD) patterns taken along the twofold axes of the bulk sample. The XPD images show clear tenfold-symmetric patterns consistent with the long range orientational order of the decagonal quasicrystal. These facts suggest that the surface has the same quasiperiodic structure as in the bulk. The surface phase transition induced by Ar+ ion bombardment is also investigated.
AB - X-ray photoelectron diffraction (XPD) and reflection high-energy electron diffraction (RHEED) measurements have been performed to investigate the surface structure of the decagonal Al72Ni12Co16 quasicrystal, which is known as a two dimensional quasicrystal. RHEED patterns for the surface parallel to the quasiperiodic planes are almost identical to the selected area electron diffraction (SAD) patterns taken along the twofold axes of the bulk sample. The XPD images show clear tenfold-symmetric patterns consistent with the long range orientational order of the decagonal quasicrystal. These facts suggest that the surface has the same quasiperiodic structure as in the bulk. The surface phase transition induced by Ar+ ion bombardment is also investigated.
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U2 - 10.1016/S0039-6028(00)00202-8
DO - 10.1016/S0039-6028(00)00202-8
M3 - Conference article
AN - SCOPUS:0033714777
SN - 0039-6028
VL - 454
SP - 11
EP - 15
JO - Surface Science
JF - Surface Science
IS - 1
T2 - ECOSS-18: 18th European Conference on Surface Science
Y2 - 21 September 1999 through 24 September 1999
ER -