Session C2: Condensed Matter I (MuSR, etc.)
1:30 PM–4:46 PM, Friday, October 21, 2011
LaSells Stewart Center Room: Agriculture Leaders Room
Chair: Robert Kiefl, University of British Columbia
Abstract ID: BAPS.2011.NWS.C2.5
Abstract: C2.00005 : Fermi liquid theory for thin $^{3}$He films
3:06 PM–3:18 PM
Preview Abstract
MathJax On | Off 
Abstract 
Authors:
David Li
(Washington State University)
Roger Anderson
(Washington State University)
Michael Miller
(Washington State University)
We study the thermodynamic response and collective excitations in thin $^{3}$He films with nonzero polarization. By utilizing results from existing spin susceptibility and specific heat measurements for $^{3}$He adsorbed on graphite substrates and also in thin $^{3}$He -- superfluid $^{4}$He films, we determine $s$-wave and $p$-wave effective interaction components. We can then use Fermi liquid theory to compute state-dependent Landau parameters. We show results for the density and polarization dependence of the effective mass, spin susceptibility, heat capacity, and compressibility for thin $^{3}$He films. We discuss the zero sound and spin-zero sound solutions of Landau's kinetic equation including contributions up to the L = 3 angular momentum components. In particular, we study features in the oscillation amplitudes of the two Fermi surfaces at finite polarization.
To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2011.NWS.C2.5