Thermodynamic Properties of the Antiferromagnetic Heisenberg Chain with Anisotropy (Uniaxial and Non-Uniaxial)
نویسنده
چکیده
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.
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