Аутори:
1. Милан Пантић, Универзитет у Новом Саду, Природно-математички факултет, Департман за физику, Serbia

Апстракт:
We investigate the excitation spectrum of the antiferromagnetic Heisenberg XXZ triangular lattice model using the method of two-time spin Green's functions. The single-magnon spectrum was calculated in the approximation of random phases, for all values of the anisotropy parameter in the range 0 < Jz < J1. We tested our model on the concrete compound Ba3CoSb2O9. The obtained theoretical results show a good agreement with the experimental measurements for the mentioned compound. Also, the excitation continuum that is generally present in two-dimensional frustrated spin systems such as this compound is clearly manifested.

Кључне речи:
Excitation spectar, spin anisotropy, anisotropic antiferromagnetic Heisenberg model

Тематска област:
СИМПОЗИЈУМ А - Наука материје, кондензоване материје и физикa чврстог стања

Датум пријаве сажетка:
05.06.2024.

Конференцијa:
Contemporary Materials 2024 - Savremeni Materijali

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