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Energy spectrum and thermodynamics of anisotropic spin‐1/2 two‐leg ladder
Author(s) -
Cheranovskii V. O.,
Chovpan A. A.,
Ezerskaya E. V.,
Özkan I.
Publication year - 2006
Publication title -
international journal of quantum chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.484
H-Index - 105
eISSN - 1097-461X
pISSN - 0020-7608
DOI - 10.1002/qua.20998
Subject(s) - condensed matter physics , ferromagnetism , anisotropy , maxima , spectrum (functional analysis) , spin (aerodynamics) , energy spectrum , quantum , specific heat , field (mathematics) , physics , chemistry , thermodynamics , quantum mechanics , art , performance art , art history , mathematics , pure mathematics
We studied the energy spectrum and some finite temperature properties of two‐leg spin‐1/2 ladder with XXZ interactions in legs and rungs. It is shown that for a strong ferromagnetic interchain interaction, there is a first‐order transition between ferromagnetic and nonmagnetic phases. The anisotropic ladder in the magnetic field may have up to four low‐temperature maxima in the temperature dependence of specific heat. © 2006 Wiley Periodicals, Inc. Int J Quantum Chem, 2006