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Title: Crossover from fermi liquid to classical behavior of normal /sup 3/He in the model of almost localized fermions

Abstract

A phenomenological extension of the model of almost localized fermions to finite temperatures is presented. It is used to calculate thermodynamic properties of the normal state of /sup 3/He. No new adjustable parameters are introduced and the effective interaction strength is the same as used by Vollhardt. A good qualitative description of the crossover from Fermi liquid to classical behavior in the specific heat, spin susceptibility, and temperature-dependent pressure (or equivalently thermal expansion) is obtained. In particular, key results, such as the change in specific heat when the spin entropy saturates and the change from thermal expansion to thermal contraction at low temperatures are reproduced.

Authors:
; ; ; ;
Publication Date:
Research Org.:
Technische Hochschule, Zurich
OSTI Identifier:
6954559
Alternate Identifier(s):
OSTI ID: 6954559
Resource Type:
Journal Article
Resource Relation:
Journal Name: J. Low Temp. Phys.; (United States); Journal Volume: 64:3/4
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; HELIUM 3; MATHEMATICAL MODELS; TRANSITION TEMPERATURE; CLASSICAL MECHANICS; ELECTRONIC SPECIFIC HEAT; ENERGY-LEVEL DENSITY; ENTROPY; FERMI GAS; FERMIONS; PARTICLE MODELS; QUANTUM FLUIDS; QUANTUM MECHANICS; RENORMALIZATION; SPIN; SPIN ORIENTATION; SPIN WAVES; THERMAL EXPANSION; ANGULAR MOMENTUM; EVEN-ODD NUCLEI; EXPANSION; FLUIDS; GASES; HELIUM ISOTOPES; ISOTOPES; LIGHT NUCLEI; MECHANICS; NUCLEI; ORIENTATION; PARTICLE PROPERTIES; PHYSICAL PROPERTIES; SPECIFIC HEAT; STABLE ISOTOPES; THERMODYNAMIC PROPERTIES 640450* -- Fluid Physics-- Superfluidity

Citation Formats

Seiter, K., Gros, C., Rice, T.M., Veda, K., and Vollhardt, D. Crossover from fermi liquid to classical behavior of normal /sup 3/He in the model of almost localized fermions. United States: N. p., 1986. Web.
Seiter, K., Gros, C., Rice, T.M., Veda, K., & Vollhardt, D. Crossover from fermi liquid to classical behavior of normal /sup 3/He in the model of almost localized fermions. United States.
Seiter, K., Gros, C., Rice, T.M., Veda, K., and Vollhardt, D. Fri . "Crossover from fermi liquid to classical behavior of normal /sup 3/He in the model of almost localized fermions". United States.
@article{osti_6954559,
title = {Crossover from fermi liquid to classical behavior of normal /sup 3/He in the model of almost localized fermions},
author = {Seiter, K. and Gros, C. and Rice, T.M. and Veda, K. and Vollhardt, D.},
abstractNote = {A phenomenological extension of the model of almost localized fermions to finite temperatures is presented. It is used to calculate thermodynamic properties of the normal state of /sup 3/He. No new adjustable parameters are introduced and the effective interaction strength is the same as used by Vollhardt. A good qualitative description of the crossover from Fermi liquid to classical behavior in the specific heat, spin susceptibility, and temperature-dependent pressure (or equivalently thermal expansion) is obtained. In particular, key results, such as the change in specific heat when the spin entropy saturates and the change from thermal expansion to thermal contraction at low temperatures are reproduced.},
doi = {},
journal = {J. Low Temp. Phys.; (United States)},
number = ,
volume = 64:3/4,
place = {United States},
year = {Fri Aug 01 00:00:00 EDT 1986},
month = {Fri Aug 01 00:00:00 EDT 1986}
}