Interaction of spin fluctuations in ferromagnetic and nearly ferromagnetic itinerant systems
- 1 September 1974
- journal article
- Published by IOP Publishing in Journal of Physics F: Metal Physics
- Vol. 4 (9), 1477-1488
- https://doi.org/10.1088/0305-4608/4/9/019
Abstract
The effect of spin fluctuations on the magnetic susceptibility of itinerant ferromagnets is investigated following the idea of mode-mode coupling proposed by Murata and Doniach (see Phys. Res. Lett., vol.29, 285 (1972)). A quantum mechanical treatment of this effect is shown to lead to a result similar to that of a theory of spin fluctuations by Moriya and the author (see abstrs. A27353 and A68756 of 1973) in which they explained the Curie-Weiss law of some itinerant ferromagnets. The nearly ferromagnetic case is also investigated and an error in the result of Beal-Monod et al (see abstr. A28337 of 1968) for the susceptibility is corrected.Keywords
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