ISSN:
1434-6036
Keywords:
PACS. 71.10.Fd Lattice fermion models (Hubbard model, etc.) – 05.70.-a Thermodynamics
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract: On the basis of Bethe ansatz solution of the one dimensional SU(4) Hubbard-like model, we have studied its thermodynamic properties by means of the Yang-Yang thermodynamic Bethe ansatz. The Landé g factors for both spin and orbit are taken into account so as to describe electrons with orbital degeneracy. The free energy at low temperature is given and the specific heat both in the strong coupling and weak coupling limits are obtained. At the same time, we also point out the three possible critical fields, which may cause a quantum phase transition.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1140/epjb/e2003-00151-2
