|
ИСТИНА |
Войти в систему Регистрация |
ИСТИНА ИНХС РАН |
||
Low-temperature thermodynamics of the classical frustrated ferromagnetic chain in a magnetic fieldстатья
Статья опубликована в высокорейтинговом журнале
Статья опубликована в журнале из списка Web of Science и/или Scopus- Авторы: Dmitriev D.V., Krivnov V.Y., Kuzminyh N.Y.
- Журнал: Physical Review B
- Том: 84
- Номер: 21
- Год издания: 2011
- Издательство: American Physical Society
- Местоположение издательства: United States
- DOI: 10.1103/PhysRevB.84.214438
- Аннотация: Low-temperature magnetization curves of the classical frustrated ferromagnetic chain in the external magnetic field near the transition point between the ferromagnetic and the helical phases is studied. It is shown that the calculation of the partition function in the scaling limit reduces to the solution of the Schrödinger equation of the special form for the quantum particle. It is proposed that the magnetization of the classical model in the ferromagnetic part of the phase diagram including the transition point defines the universal scaling function which is valid for the quantum model as well. Explicit analytical formulas for the magnetization are given in the limiting cases of low and high magnetic fields. The influence of the easy-axis anisotropy on the magnetic properties of the model is studied. It is shown that even small anisotropy essentially changes the behavior of the susceptibility in the vicinity of the transition point.
- Добавил в систему: Кузьминых Николай Юрьевич