Spin glass behavior and non-ergodicity in amorphous iron-boron alloys

Spin glass behavior and non-ergodicity in amorphous iron-boron alloys

We report FMR measurements on amorphous Fe xB 1-x thin films with x=0.47, 0.49 and 0.53. At low T we observe anomalies characteristic of the FM-SG transition. In addition, in the 0.47 and 0.49 alloys the resonance field, below ∼80K, depends upon the rate of cooling. We suggest that this behavior is...

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Veröffentlicht in:Solid state communications 1982-01, Vol.43 (4), p.239-242
Hauptverfasser: Webb, D.J., Bhagat, S.M., Moorjani, K., Poehler, T.O., Satkiewicz, F.G.
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Sprache:eng
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Zusammenfassung:We report FMR measurements on amorphous Fe xB 1-x thin films with x=0.47, 0.49 and 0.53. At low T we observe anomalies characteristic of the FM-SG transition. In addition, in the 0.47 and 0.49 alloys the resonance field, below ∼80K, depends upon the rate of cooling. We suggest that this behavior is symptomatic of non-ergodicity in the spin glass state.
ISSN:0038-1098
1879-2766
DOI:10.1016/0038-1098(82)90083-7