Spin-Glass-Ferromagnetic Multicritical Point in Amorphous Fe-Mn Alloys
- 3 March 1980
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 44 (9) , 596-599
- https://doi.org/10.1103/physrevlett.44.596
Abstract
The ac susceptibility of a sequence of amorphous Fe-Mn alloys shows lines of both spin-glass and ferromagnetic transitions. A detailed scaling-law analysis, treating the common point on the two magnetic phase boundaries as a multicritical point, verifies the scaling hypothesis and yields multicritical, spin-glass, and crossover exponents. The observed behavior compares quite will with position-space renormalization results.Keywords
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