Spin waves and spin relaxation in normal Fermi liquids

Thesis/Dissertation · Tue Jan 01 04:00:00 EST 1985

OSTI ID:5570955

Meltzer, D E

This work explores several aspects of spin-dependent excitations in normal Fermi liquids. Chapter 1 is a general introduction and overview of the work. The Landau kinetic equation and its application to nonequilibrium properties of Fermi liquids is discussed, and the properties of collective density modes are briefly reviewed. The properties of both longitudinal and transverse spin excitations are then outlined, leading up to a discussion of spin waves and spin diffusion, including the Leggett-Rice effect. Chapter 2 discusses the possibility of making a determination of the contribution of many-body interactions to the large effective mass in heavy fermion materials, e.g. UPt/sub 3/, by the method of conduction-electron spin resonance (CESR). Chapter 3 investigates the accuracy of the usual relaxation time approximations, involving the spin diffusion lifetime tau/sub D/, which are generally made in analyses of spin waves and the Leggett-Rice effect Fermi liquids. Chapter 4 contains a calculation of the longitudinal spin relaxation time T/sub 1/ in bulk /sup 3/He in the Fermi liquid (T << T/sub F/) regime. The kinetic equation is used to obtain an expression for T/sub 1/ in terms of perturbations of the scattering amplitude.

• Research Organization: State Univ. of New York, Stony Brook (USA)
• OSTI ID: 5570955
• Country of Publication: United States
• Language: English

Related Subjects

640450 -- Fluid Physics-- Superfluidity
640460* -- Fluid Physics-- Other Quantum Fluids
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ELECTRON SPIN RESONANCE
EQUATIONS
FERMI GAS
FLUIDS
GASES
KINETIC EQUATIONS
LANDAU LIQUID HELIUM THEORY
MAGNETIC RESONANCE
RELAXATION
RELAXATION TIME
RESONANCE
SPIN WAVES
SPIN-SPIN RELAXATION