Unified description for the effect of spin freezing on ESR linewidth |
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| Authors: | S.M. Bhagat M.L. Spano J.N. Lloyd |
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| Affiliation: | University of Maryland, Dept. of Physics, College Park, Md. 20740, USA;Colgate University, Dept. of Physics, Hamilton, N.Y. 13346, USA |
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| Abstract: | We have shown that, for a number of systems which undergo a spin glass type transition, the temperature dependence of the ESR linewidth (above the freezing temperature) exhibits a single simplified form which can be roughly understood on the basis of elementary assumptions. Remarkably, the linewidth of ferromagnetic resonance observed in the surface layer of a?Y1?xFex alloys exhibits the same dependence on temperature. |
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