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논문 기본 정보
- 자료유형
- 학술대회자료
- 저자정보
- 발행연도
- 2021.11
- 수록면
- 141 - 142 (2page)
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Quantum spin liquids (QSLs) have been the subject of great interest since Anderson’s suggestion. Recently, Kitaev proposed a canonical model of QSLs termed the Kitaev model on a honeycomb lattice (Fig. 1), which provides exact realizations of QSLs with topological order and fractional excitations. Moreover, exchange interactions in transition metal compounds with the strong spin-orbit coupling, such as iridium and ruthenium compounds, are suggested to be dominated by the Kitaev-type interaction.
To discuss experimental results in the viewpoint of the Kitaev physics, we investigate the thermodynamic properties and spin dynamics of the Kitaev model. We calculate the specific heat using the quantum Monte Carlo simulations and find a double-peak structure, where half of the entropy is released at each peak. The result suggests that a quantum spin is fractionalized into two types of elementary excitations, itinerant Majorana fermions and localized Z2 fluxes, due to quantum many-bod ... 전체 초록 보기
To discuss experimental results in the viewpoint of the Kitaev physics, we investigate the thermodynamic properties and spin dynamics of the Kitaev model. We calculate the specific heat using the quantum Monte Carlo simulations and find a double-peak structure, where half of the entropy is released at each peak. The result suggests that a quantum spin is fractionalized into two types of elementary excitations, itinerant Majorana fermions and localized Z2 fluxes, due to quantum many-bod ... 전체 초록 보기
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