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Fizika : a journal of experimental and theoretical physics, Vol. 19 No. 3, 1987.

Original scientific paper

Model of antiferromagnet with heterophase fluctuations

Mikhail A. Boky ; Chemical Department, Moscow State University, Moscow, USSR
Igor K. Kudryavtsev ; Chemical Department, Moscow State University, Moscow, USSR
Alexander S. Shumovsky ; Laboratory of Theoretical Physics, Joint Institute for Nuclear Research, Dubna, USSR
Viacheslav I. Yukalov ; Laboratory of Theoretical Physics, Joint Institute for Nuclear Research, Dubna, USSR

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Abstract

The model of an antiferromagnet with paramagnetic nuclei is considered. The behaviour of phase probabilities is analysed especially near zero temperature and Neel temperature. Stability conditions show when such an antiferromagnet with paramagnetic fluctuational nuclei is stable, metastable or unstable. The specific heat in the vicinity of the critical point is also analyzed. The presence of heterophase fluctuations can lead to the change of phase transition order from second to first; the criteria for this change are found and discussed.

Keywords

Hrčak ID:

331200

URI

https://hrcak.srce.hr/331200

Publication date:

7.7.1987.

Article data in other languages: croatian

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