Theory of spin waves in a multiple band itinerant antiferromagnet
作者： M J Gillan
DOI: 10.1088/0305-4608/3/10/021
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摘要: A method of calculating the long wavelength spin wave frequencies in a multiple band itinerant antiferromagnet is described. No special features structure, such as nesting, are assumed. The derived by examining poles RPA generalized susceptibility for d electrons. natural consequence treatment existence damping proportional to wavevector. This attributed decay into an electron-hole pair. formulae applied numerically gamma manganese. Rough agreement with experiment found.
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