Phys. Rev. Lett. 80, 5369–5372 (1998)Surface Structural Transitions on the Icosahedral Quasicrystal Al70Pd20Mn10Received 10 December 1997; published in the issue dated 15 June 1998 We report the observation in real space of a structural transition on the surface of the quasicrystal Al70Pd20Mn10 from icosahedral to body-centered cubic caused by bombardment with 1.5-keV Ar+ ions. Subsequent annealing at 700 K restores the quasicrystalline structure of the surface. In addition to illustrating the sensitivity of the surface structure to local stoichiometry and demonstrating the thermodynamic stability of the quasicrystalline state, our observations open the way to investigating the assembly kinetics on quasicrystalline surfaces. © 1998 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.80.5369
DOI:
10.1103/PhysRevLett.80.5369
PACS:
61.50.Ks, 36.40.Ei, 61.44.Br, 61.82.Bg
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