Тип публикации: статья из журнала
Год издания: 2016
Идентификатор DOI: 10.1007/s10909-015-1457-9
Ключевые слова: Quantum magnets, Spin wave theory, Strong single-ion anisotropy, Anisotropy, Chains, Ising model, Magnets, Quantum theory, Spin waves, Temperature, Arbitrary symmetry, Heisenberg magnet, Low temperature excitation, Low temperatures, Single ion anisotropy, Single-chain magnet, Spin-wave theory, Spin fluctuations
Аннотация: We have developed the spin wave theory of Heisenberg magnets with strong single-ion anisotropy of arbitrary symmetry with two and more sublattices. Using this approach, the low-temperature magnetic properties of the single-chain magnet catena- with four sublattices and twisting mutually orthogonal easy plane have been calculated. IПоказать полностьюt has been shown that the modulation of the easy planes directions creates on the one hand the low-temperature excitation spectrum similar to the one of the Ising models, and on the other hand strong spin fluctuations.
Журнал: JOURNAL OF LOW TEMPERATURE PHYSICS
Выпуск журнала: Vol. 185, Is. 5-6
Номера страниц: 564-570
ISSN журнала: 00222291
Место издания: NEW YORK
Издатель: SPRINGER/PLENUM PUBLISHERS