FE-57 MOSSBAUER-EFFECT STUDIES OF QUADRUPOLE SPLITTING DISTRIBUTIONS IN ICOSAHEDRAL AL-TM-FE QUASI-CRYSTALS

被引：7
作者：
LAWTHER, DW
DUNLAP, RA
SRINIVAS, V
LLOYD, DJ
JHA, S
机构：
[1] ALCAN INT LTD,KINGSTON RES & DEV CTR,KINGSTON K7L 4Z4,ONTARIO,CANADA
[2] UNIV CINCINNATI,DEPT PHYS,CINCINNATI,OH 45221
来源：
HYPERFINE INTERACTIONS | 1990年 / 60卷 / 1-4期
关键词：
D O I：
10.1007/BF02399870
中图分类号：
O64 [物理化学（理论化学）、化学物理学]; O56 [分子物理学、原子物理学];
学科分类号：
070203 ; 070304 ; 081704 ; 1406 ;
摘要：
Room temperature57Fe Mössbauer effect spectra of several Al-TM-Fe icosahedral quasicrystals are reported. Results of fits to discrete sites and to various distributions of quadrupole splittings are presented. Mean isomer shifts, {Mathematical expression}, and quadrupole splittings, Δ, are shown to be insensitive to the fitting procedure used. Trends in {Mathematical expression} and {Mathematical expression} for the icosahedral phase may be indicative of a Hume-Rothery stabilization mechanism. © 1990 J.C. Baltzer A.G., Scientific Publishing Company.
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收藏
页码：785 / 790
页数：6
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