Spin fluctuations in isotropic ferromagn
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P. BΓΆni
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Article
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1993
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Elsevier Science
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English
β 489 KB
By means of polarized neutrons it is possible to measure different magnetic spin excitation modes in isotroplc ferromagnets. The data from EuS shows that the demagnetizing fields have a profound effect on the spin excitations below and above T c. In particular they prevent the long-wavelength spin f