One-dimensionally modulated quasicrystal phase related to icosahedral Al-Mn-Pd

被引：4
|
作者：
Haussler, D
Beeli, C
Nissen, HU
机构：
[1] ETH HONGGERBERG,SOLID STATE PHYS LAB,CH-8093 ZURICH,SWITZERLAND
[2] ECOLE POLYTECH FED LAUSANNE,INTERDEPT CTR ELECT MICROSCOPY,CH-1015 LAUSANNE,SWITZERLAND
来源：
PHILOSOPHICAL MAGAZINE LETTERS | 1997年 / 75卷 / 02期
关键词：
D O I：
10.1080/095008397179831
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A new one-dimensionally modulated quasicrystal phase related to the icosahedral Al-Mn-Pd quasicrystal is described from an alloy with composition Al69.8Mn8.3Pd21.9 annealed at temperatures between 550 and 715 degrees C and subsequently quenched in water. Systematic tilting experiments reveal that this phase is an icosahedral quasicrystal with a modulation along one of its threefold symmetry axes. It therefore has a trigonal-symmetric Fourier spectrum and a modulation period along the unique threefold axis which corresponds to 15.7 nm. This long-range ordered phase is related to the usual F-type icosahedral quasicrystal as well as to the F2 icosahedral quasicrystal which has a P-type icosahedral lattice.
引用
收藏
页码：117 / 124
页数：8
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