Effect of correlations on the electron self energy in itinerant ferromagnetism
- 1 August 1973
- journal article
- Published by IOP Publishing in Journal of Physics F: Metal Physics
- Vol. 3 (8) , L145-L148
- https://doi.org/10.1088/0305-4608/3/8/005
Abstract
A model for the electron self energy in a strongly ferromagnetic metal is discussed, which takes into account electron-electron and electron- hole correlations. The latter effect is found to cause important changes to the Stoner-Wohlfarth theory in nickel, of the type already discussed by Hertz and Edwards (1972), while the electron- electron correlation renormalizes the bare potential. The invariance under spin rotation transformations of the model is then briefly discussed.Keywords
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