Physics – Condensed Matter – Strongly Correlated Electrons
Scientific paper
2003-05-11
Physics
Condensed Matter
Strongly Correlated Electrons
5 pages
Scientific paper
10.1103/PhysRevB.68.094427
Using the approach alternative to the traditional Thermodynamic Bethe Ansatz,
we derive analytical expressions for the free energy of Coqblin-Schrieffer
model with arbitrary magnetic and crystal fields. In Appendix we discuss two
concrete examples including the field generated crossover from the SU(4) to the
SU(2) symmetry in the SU(4)-symmetric model.
Bazhanov Vladimir V.
Lukyanov Sergei L.
Tsvelik Alexei M.
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