Quantum liquid states of spin solitons in a ferroelectric spin-Peierls state
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| Main Authors: | , , , , , , |
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| Format: | Preprint |
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2024
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| _version_ | 1866909090047852544 |
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| author | Imajo, Shusaku Miyake, Atsushi Kurihara, Ryosuke Tokunaga, Masashi Kindo, Koichi Horiuchi, Sachio Kagawa, Fumitaka |
| author_facet | Imajo, Shusaku Miyake, Atsushi Kurihara, Ryosuke Tokunaga, Masashi Kindo, Koichi Horiuchi, Sachio Kagawa, Fumitaka |
| contents | In this study, we performed high-magnetic-field magnetization, dielectric, and ultrasound measurements on an organic salt showing a ferroelectric spin-Peierls (FSP) state, which is in close proximity to a quantum critical point. In contrast to the sparsely distributed gas-like spin solitons typically observed in conventional spin-Peierls (SP) states, the FSP state exhibits dense liquid-like spin solitons resulting from strong quantum fluctuations, even at low fields. Nevertheless, akin to conventional SP systems, a magnetic-field-induced transition is observed in the FSP state. In conventional high-field SP states, an emergent wave vector results in the formation of a spin-soliton lattice. However, in the present high-field FSP state, the strong quantum fluctuations preclude the formation of such a soliton lattice, causing the dense solitons to remain in a quantum-mechanically melted state. This observation implies the realization of a quantum liquid--liquid transition of topological particles carrying spin and charge in a ferroelectric insulator. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2402_00391 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Quantum liquid states of spin solitons in a ferroelectric spin-Peierls state Imajo, Shusaku Miyake, Atsushi Kurihara, Ryosuke Tokunaga, Masashi Kindo, Koichi Horiuchi, Sachio Kagawa, Fumitaka Strongly Correlated Electrons Materials Science In this study, we performed high-magnetic-field magnetization, dielectric, and ultrasound measurements on an organic salt showing a ferroelectric spin-Peierls (FSP) state, which is in close proximity to a quantum critical point. In contrast to the sparsely distributed gas-like spin solitons typically observed in conventional spin-Peierls (SP) states, the FSP state exhibits dense liquid-like spin solitons resulting from strong quantum fluctuations, even at low fields. Nevertheless, akin to conventional SP systems, a magnetic-field-induced transition is observed in the FSP state. In conventional high-field SP states, an emergent wave vector results in the formation of a spin-soliton lattice. However, in the present high-field FSP state, the strong quantum fluctuations preclude the formation of such a soliton lattice, causing the dense solitons to remain in a quantum-mechanically melted state. This observation implies the realization of a quantum liquid--liquid transition of topological particles carrying spin and charge in a ferroelectric insulator. |
| title | Quantum liquid states of spin solitons in a ferroelectric spin-Peierls state |
| topic | Strongly Correlated Electrons Materials Science |
| url | https://arxiv.org/abs/2402.00391 |