Kinetic equations for neutral Fermi liquids in dc magnetic fields. The nonlinear and particle-hole asymmetric effects
Since nonlinear effects are of the same importance as the particle-hole asymmetry (PHA) effects for normal Fermi liquids, at least for some physical situations, a formalism is presented taking both into account. Moreover, because the nonlinearity or PHA is easiest to induce by strong magnetic fields, weak polarization effects are also included. The kinetic equations for the weakly coupled density and magnetization modes are obtained under these circumstances. They lead to an additional effective mass equation in comparison to the Landau formula, joining the suitable angular average of the effective interaction of triples of quasiparticles with gradient of the two-quasiparticle interaction with PHA effects included. The equations are investigated in detail for ac magnetic field much smaller than the dc field in two cases: (1) at almost equilibrium magnetization of the sample and (2) at almost equilibrium (in the length) magnetization precessing around a dc field tipped to it by an angle Theta not equal to O.
- Research Organization:
- Universite de Sherbrooke, Quebec (Canada)
- OSTI ID:
- 6918289
- Journal Information:
- J. Low Temp. Phys.; (United States), Vol. 71:1-2
- Country of Publication:
- United States
- Language:
- English
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ELECTROMAGNETIC FIELDS
HAMILTONIANS
HARMONICS
HOLES
LIQUIDS
MAGNETIC MOMENTS
MAGNETIC SUSCEPTIBILITY
MAGNETIZATION
NONLINEAR PROBLEMS
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MAGNETIC PROPERTIES
MASS
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MECHANICS
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640450* - Fluid Physics- Superfluidity
640430 - Fluid Physics- Magnetohydrodynamics