g Tensors and Tensor Interactions: Their Effect on Conduction Electron Spin Resonance. II

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Abstract
The spin–orbit coupling contribution to the electron–phonon matrix element is shown to give rise to a tensor interaction between electron quasi-particles. These tensor interactions and a conduction electron g tensor are incorporated into the framework of the Landau theory of Fermi liquids, and detailed calculations of the conduction electron spin resonance frequency and the transverse and longitudinal relaxation times are carried out, thereby extending previous work by the author. Tensor interactions are shown to be capable of qualitatively explaining results such as those obtained by Lubzens, Shanabarger, and Schultz. A possible qualitative explanation is given of the anisotropy observed by Shanabarger in the line width of silver. Finally, experiments to measure T1 are suggested, since they can distinguish between models making use of a scalar momentum dependent g and the models of the present paper in which a g tensor and tensor interactions are assumed.

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