Effect of Adding of V and Co Atoms on the Spin Glass Transition Temperature of Fe 0.7-x M x Al 0.30 Alloys
K.A. Azez
Department of Physical Sciences, Jordan University of Science & Technology P.O. Box 3030, Irbid, Jordan
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Received: November 4, 2002; revised version January 15, 2003
Magnetization measurements on zero field cooled (M ZFC ) and field cooled (M FC ) with temperature T were made on Fe 0.7-x M x Al 0.30 alloys (where M=Co or M=V). Compared to Co and V free alloy Fe 0.7 Al 0.30 , our results revealed that an addition of small amount of M=Co with 0<x<0.10 shows linear decrease in the transition temperature T f as x increases. Addition of small amount of M=V with 0<x<0.1 shows gradual decrease in T f with increasing x. The relative changes in T f show that an addition of V atoms is of more significance than addition of Co atoms. There is a twofold decrease which could be attributed to the ferromagnetic nature of Co atoms and to the random fields.
DOI: 10.12693/APhysPolA.103.471
PACS numbers: 75.50.Bb