Abstract
We develop a model for paramagnetic Fermi liquids. This model has both direct and induced interactions, the latter including both density-density and current-current response. The direct interactions are chosen to reproduce the Fermi liquid parametersF s0 ,F a0 ,F s1 and to satisfy the forward scattering sum rule. TheF a1 andF s,a1 for1>1 are determined self-consistently by the induced interactions; they are checked against experimental determinations. The model is applied in detail to liquid3He, using data from spin-echo experiments, sound attenuation, and the velocities of first and zero sound. Consistency with experiments gives definite preferences for values ofm*. The model is also applied to paramagnetic metals. Arguments are given that this model should provide a basis for calculating effects of magnetic fields.
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Supported in part by U.S. DOE Contract No. DE-AC02-76ER13001.
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Ainsworth, T.L., Bedell, K.S., Brown, G.E. et al. A model for paramagnetic Fermi systems. J Low Temp Phys 50, 319–336 (1983). https://doi.org/10.1007/BF00681609
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DOI: https://doi.org/10.1007/BF00681609