Abstract
Phase diagram on melt-spun Fe x Y 100− x amorphous alloys was investigated through measurements of d M/d H, zero-field-cooled and field-cooled magnetization and EXAFS. The present result shows reentrant spin glass for 42⩽ x⩽58 and spin glass for x⩽40, which is different from previous studies for sputtered and other melt-spun samples. The magnetic phase change at x=40 can be attributed to the change of Fe–Fe distance or some other structural changes.
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