Analytical results for the Coqblin-Schrieffer model with generalized magnetic fields

V. Bazhanov; L. Lukyanov; M. Tsvelik

doi:10.1103/PhysRevB.68.094427

Analytical results for the Coqblin-Schrieffer model with generalized magnetic fields

V. Bazhanov, L. Lukyanov, M. Tsvelik

Research output: Contribution to journal › Article › peer-review

20 Citations (Scopus)

Abstract

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 the Appendix we calculate the zero-temperature magnetic susceptibility for two concrete crystal-field patterns. One of the patterns describes the field generated crossover from the SU(4) to the SU(2) symmetry in the SU(4)-symmetric model.

Original language	English
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	68
Issue number	9
DOIs	https://doi.org/10.1103/PhysRevB.68.094427
Publication status	Published - 2003

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10.1103/PhysRevB.68.094427

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abstract = "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 the Appendix we calculate the zero-temperature magnetic susceptibility for two concrete crystal-field patterns. One of the patterns describes the field generated crossover from the SU(4) to the SU(2) symmetry in the SU(4)-symmetric model.",

author = "V. Bazhanov and L. Lukyanov and M. Tsvelik",

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N2 - 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 the Appendix we calculate the zero-temperature magnetic susceptibility for two concrete crystal-field patterns. One of the patterns describes the field generated crossover from the SU(4) to the SU(2) symmetry in the SU(4)-symmetric model.

AB - 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 the Appendix we calculate the zero-temperature magnetic susceptibility for two concrete crystal-field patterns. One of the patterns describes the field generated crossover from the SU(4) to the SU(2) symmetry in the SU(4)-symmetric model.

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DO - 10.1103/PhysRevB.68.094427

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VL - 68

JO - Physical Review B - Condensed Matter and Materials Physics

JF - Physical Review B - Condensed Matter and Materials Physics

IS - 9

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Analytical results for the Coqblin-Schrieffer model with generalized magnetic fields

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