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Thermodynamic Properties of the Antiferromagnetic Heisenberg Chain with Anisotropy (Uniaxial and Non‐Uniaxial)
Author(s) -
Wu YinZhong,
Wu YinZhong,
Cao HaiXia,
Jiang Qing,
Li ZhenYa,
Li ZhenYa
Publication year - 1998
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/(sici)1521-3951(199804)206:2<767::aid-pssb767>3.0.co;2-w
Subject(s) - anisotropy , condensed matter physics , antiferromagnetism , magnetization , magnetic anisotropy , heisenberg model , magnetic field , materials science , physics , quantum mechanics
We use a method which combines the discretized path‐integral representation (DPIR) with the double‐chain approximation (DCA) to study the thermodynamic properties of an S = 1 antiferromagnetic Heisenberg chain (AFHC) with both uniaxial and non‐uniaxial single‐ion anisotropy. The magnetization in the presence of an external magnetic field, the zero‐field magnetic susceptibility and the magnetic specific heat of the system are obtained. The effects of the anisotropy on the thermodynamic properties of the AFHC are examined and discussed in details.