Eur. Phys. J. B 73, 85-94 (2010)
https://doi.org/10.1140/epjb/e2009-00398-5

Spin-spin correlation effect on the thermodynamic properties of the polarized liquid ³He at finite temperature

Department of Physics, Shiraz University, Shiraz 71454, Iran

Corresponding author: bordbar@physics.susc.ac.ir

Received: 28 June 2009
Revised: 30 September 2009
Published online: 25 November 2009

Abstract

We have used the lowest order constrained variational (LOCV) method to calculate some thermodynamic properties of the polarized liquid ³He at finite temperature with the spin-dependent correlation function. For each value of the temperature and density we have shown that the main contribution to the potential energy comes from the spin-triplet state. For the polarized liquid ³He, we have seen that the differences between the thermodynamic properties of the spin-dependent and the spin-independent cases decrease by increasing both polarization and temperature. For all relevant temperatures and densities, our results do not show any ferromagnetic phase transition.