HYDROGEN-INDUCED LOCAL DEMIXING REVEALED BY TA-181 SPIN RELAXATION MEASUREMENTS IN AMORPHOUS ZR2NI HYDRIDES

被引：4
作者：
BAUDRY, A
BOYER, P
CHIKDENE, MA
机构：
[1] Dept. de Recherche Fundamentale, Lab. Magnetisme et Diffusion Par Interactions Hyperfines, CENG, Grenoble
来源：
JOURNAL OF PHYSICS-CONDENSED MATTER | 1990年 / 2卷 / 40期
关键词：
D O I：
10.1088/0953-8984/2/40/007
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
181Ta spin-relaxation measurements have been carried out in hydrides of the intermetallic glass Zr2Ni((H)/(M)=0.83 and 1.5) using the perturbed angular correlation (PAC) technique. The absence of a broad distribution in the activation energy of the hydrogen hopping rate is confirmed. Moreover, the jump rate is found to be independent of H concentration. The results derived from PAC experiments suggest the existence of hydrogen-induced demixing in the amorphous hydrided alloy, with the H atoms located in tetrahedral Zr4 sites.
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页码：8075 / 8082
页数：8
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