DYNAMIC AND STATIC PROPERTIES OF A NON-HEISENBERG ANISOTROPIC ANTIFERROMAGNET AT NON-ZERO TEMPERATURE
- Авторлар: Yarygina E.A.1, Kozachek V.V.1, Matyunina Y.Y.1, Kosmachev O.A.1, Fridman Y.A.1
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Мекемелер:
- Vernadsky Crimean Federal University
- Шығарылым: Том 165, № 1 (2024)
- Беттер: 98-113
- Бөлім: Articles
- URL: https://journals.rcsi.science/0044-4510/article/view/256901
- DOI: https://doi.org/10.31857/S0044451024010103
- ID: 256901
Дәйексөз келтіру
Аннотация
In the mean-field approximation, the influence of both temperature and single-ion easy-axis anisotropy on the phase states and excitation spectra of a non-Heisenberg antiferromagnet with S = 1 is studied. The temperature dependences of vector and tensor order parameters are determined both in phases with vector and tensor order parameters. The dependence of excitation spectra on temperature and anisotropy constant has been studied. It is shown that at temperatures other than zero, an additional (non-relaxation) branch of excitations arises. The temperature dependence of the phase diagram has been studied.
Негізгі сөздер
Авторлар туралы
E. Yarygina
Vernadsky Crimean Federal University
Email: yuriifridman@gmail.com
Ресей, 295007, Simferopol
V. Kozachek
Vernadsky Crimean Federal University
Email: yuriifridman@gmail.com
Ресей, 295007, Simferopol
Ya. Matyunina
Vernadsky Crimean Federal University
Email: yuriifridman@gmail.com
Ресей, 295007, Simferopol
O. Kosmachev
Vernadsky Crimean Federal University
Email: yuriifridman@gmail.com
Ресей, 295007, Simferopol
Yu. Fridman
Vernadsky Crimean Federal University
Хат алмасуға жауапты Автор.
Email: yurifridman@gmail.com
Ресей, 295007, Simferopol
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