Magnetic order and spin excitations in the Kitaev–Heisenberg model on a honeycomb lattice
- Авторлар: Vladimirov A.A.1, Ihle D.2, Plakida N.M.1,3
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Мекемелер:
- Joint Institute for Nuclear Research
- Institut für Theoretische Physik
- Max-Planck-Institut für Physik Komplexer Systeme
- Шығарылым: Том 122, № 6 (2016)
- Беттер: 1060-1069
- Бөлім: Order, Disorder, and Phase Transition in Condensed System
- URL: https://journals.rcsi.science/1063-7761/article/view/190357
- DOI: https://doi.org/10.1134/S106377611606008X
- ID: 190357
Дәйексөз келтіру
Аннотация
We consider the quasi-two-dimensional pseudo-spin-1/2 Kitaev–Heisenberg model proposed for A2IrO3 (A = Li, Na) compounds. The spin-wave excitation spectrum, the sublattice magnetization, and the transition temperatures are calculated in the random phase approximation for four different ordered phases observed in the parameter space of the model: antiferromagnetic, stripe, ferromagnetic, and zigzag phases. The Néel temperature and temperature dependence of the sublattice magnetization are compared with the experimental data on Na2IrO3.
Авторлар туралы
A. Vladimirov
Joint Institute for Nuclear Research
Email: plakida@theor.jinr.ru
Ресей, Dubna, Moscow oblast, 141980
D. Ihle
Institut für Theoretische Physik
Email: plakida@theor.jinr.ru
Германия, Leipzig, D-04109
N. Plakida
Joint Institute for Nuclear Research; Max-Planck-Institut für Physik Komplexer Systeme
Хат алмасуға жауапты Автор.
Email: plakida@theor.jinr.ru
Ресей, Dubna, Moscow oblast, 141980; Dresden, D-01187
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