Spin-strain interactions under hydrostatic pressure in $α$-RuCl$_3$
Fuente:
arXiv
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| Autori principali: | , , , , , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2025
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| Soggetti: | |
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| _version_ | 1866929745426382848 |
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| author | Hauspurg, A. Singh, Susmita Yanagisawa, T. Tsurkan, V. Wosnitza, J. Brenig, Wolfram Perkins, Natalia B. Zherlitsyn, S. |
| author_facet | Hauspurg, A. Singh, Susmita Yanagisawa, T. Tsurkan, V. Wosnitza, J. Brenig, Wolfram Perkins, Natalia B. Zherlitsyn, S. |
| contents | We investigate the effects of hydrostatic pressure on $α$-RuCl$_3$, a prototypical material for the Kitaev spin model on a honeycomb lattice with a possible spin-liquid ground state. Using ultrasound measurements at pressures up to 1.16 GPa, we reveal significant modifications of the acoustic properties and the $H$-$T$ phase diagram of this material. Hydrostatic pressure suppresses the three-dimensional magnetic order and induces a dimerization transition at higher pressures. At low pressures, the sound attenuation exhibits a linear temperature dependence, while above 0.28 GPa, it becomes nearly temperature independent, suggesting a shift in the phonon scattering regime dominated by Majorana fermions. These findings provide new insights into spin-strain interactions in Kitaev magnets and deliver a detailed characterization of the $H$-$T$ phase diagram of $α$-RuCl$_3$ under hydrostatic pressure. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2503_04656 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Spin-strain interactions under hydrostatic pressure in $α$-RuCl$_3$ Hauspurg, A. Singh, Susmita Yanagisawa, T. Tsurkan, V. Wosnitza, J. Brenig, Wolfram Perkins, Natalia B. Zherlitsyn, S. Strongly Correlated Electrons We investigate the effects of hydrostatic pressure on $α$-RuCl$_3$, a prototypical material for the Kitaev spin model on a honeycomb lattice with a possible spin-liquid ground state. Using ultrasound measurements at pressures up to 1.16 GPa, we reveal significant modifications of the acoustic properties and the $H$-$T$ phase diagram of this material. Hydrostatic pressure suppresses the three-dimensional magnetic order and induces a dimerization transition at higher pressures. At low pressures, the sound attenuation exhibits a linear temperature dependence, while above 0.28 GPa, it becomes nearly temperature independent, suggesting a shift in the phonon scattering regime dominated by Majorana fermions. These findings provide new insights into spin-strain interactions in Kitaev magnets and deliver a detailed characterization of the $H$-$T$ phase diagram of $α$-RuCl$_3$ under hydrostatic pressure. |
| title | Spin-strain interactions under hydrostatic pressure in $α$-RuCl$_3$ |
| topic | Strongly Correlated Electrons |
| url | https://arxiv.org/abs/2503.04656 |