Tunneling states in ferromagnetic glasses |
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Authors: | MA Continentino |
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Institution: | Instituto de Fisica, Universidade Federal Fluminense, Caixa Postal 296, Niterói, RJ, Brasil |
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Abstract: | We study the interaction between structural defects, represented by two level systems, and spin waves in a ferromagnetic glass. The damping and energy shift of the spin wave due to this interaction have a “resonant” and a “relaxation” contribution in analogy with the case of phonons. Ferromagnetic resonance in amorphous ferromagnets can provide useful information on structural relaxation in these materials. |
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