Decagonal epilayers on the icosahedral quasicrystal Al70Pd20Mn10

被引：17

作者：

Bolliger, B ^{[1
]}

Erbudak, M

Vvedensky, DD

Kortan, AR

机构：

[1] ETH Zurich, Festkorperphys Lab, CH-8093 Zurich, Switzerland

[2] AT&T Bell Labs, Lucent Technol, Murray Hill, NJ 07974 USA

[3] Univ London Imperial Coll Sci Technol & Med, Blackett Lab, London SW7 2BZ, England

来源：

PHYSICAL REVIEW LETTERS | 1999年 / 82卷 / 04期

关键词：

D O I：

10.1103/PhysRevLett.82.763

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The pentagonal surface of the icosahedral quasicrystal Al70Pd20Mn10 becomes decagonal upon sputtering with Ar+ ions at elevated temperatures. This decagonal surface has a vastly different chemical composition (Al22Pd56Mn22) than bulk decagonal quasicrystals (Al70Pd10Mn20) and is coherent with the icosahedral substrate across the entire macroscopic sample. The transformation of this surface back to the original icosahedral structure and composition during annealing is followed in real space and in real time with secondary-electron imaging. The structural changes during this transformation are discussed in light of current models of decagonal and icosahedral quasicrystals.

引用

页码：763 / 766

页数：4

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