Chiral excitations and the intermediate-field spin-liquid regime in the Kitaev magnet $α$-RuCl$_3$
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arXiv
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| Auteurs principaux: | , , , , , , , , |
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| Format: | Preprint |
| Publié: |
2023
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| _version_ | 1866916465152622592 |
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| author | Sahasrabudhe, Anuja Prosnikov, Mikhail A. Koethe, Thomas C. Stein, Philipp Tsurkan, Vladimir Loidl, Alois Grüninger, Markus Hedayat, Hamoon van Loosdrecht, Paul H. M. |
| author_facet | Sahasrabudhe, Anuja Prosnikov, Mikhail A. Koethe, Thomas C. Stein, Philipp Tsurkan, Vladimir Loidl, Alois Grüninger, Markus Hedayat, Hamoon van Loosdrecht, Paul H. M. |
| contents | In the Kitaev magnet $α$-RuCl$_3$, the existence of a magnetic-field-induced quantum spin liquid phase and of anyonic excitations are discussed controversially. We address this elusive, exotic phase via helicity-dependent Raman scattering and analyze the Raman optical activity of excitations as a function of magnetic field and temperature. The hotly debated field regime between 7.5 T and 10.5 T is characterized by clear spectroscopic signatures such as a plateau of the Raman optical activity of the dominant, chiral spin-flip excitation. This provides direct evidence for the existence of a distinct intermediate field regime compatible with a quantum spin liquid phase. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2305_03400 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Chiral excitations and the intermediate-field spin-liquid regime in the Kitaev magnet $α$-RuCl$_3$ Sahasrabudhe, Anuja Prosnikov, Mikhail A. Koethe, Thomas C. Stein, Philipp Tsurkan, Vladimir Loidl, Alois Grüninger, Markus Hedayat, Hamoon van Loosdrecht, Paul H. M. Strongly Correlated Electrons In the Kitaev magnet $α$-RuCl$_3$, the existence of a magnetic-field-induced quantum spin liquid phase and of anyonic excitations are discussed controversially. We address this elusive, exotic phase via helicity-dependent Raman scattering and analyze the Raman optical activity of excitations as a function of magnetic field and temperature. The hotly debated field regime between 7.5 T and 10.5 T is characterized by clear spectroscopic signatures such as a plateau of the Raman optical activity of the dominant, chiral spin-flip excitation. This provides direct evidence for the existence of a distinct intermediate field regime compatible with a quantum spin liquid phase. |
| title | Chiral excitations and the intermediate-field spin-liquid regime in the Kitaev magnet $α$-RuCl$_3$ |
| topic | Strongly Correlated Electrons |
| url | https://arxiv.org/abs/2305.03400 |