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| Autores principales: | , , , , , , , , |
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| Formato: | Preprint |
| Publicado: |
2022
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| Materias: | |
| Acceso en línea: | https://arxiv.org/abs/2207.01846 |
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| _version_ | 1866909072401367040 |
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| author | Zhang, Yugang Li, Zefang Zhang, Jing Zhang, Long Li, Yonghong Liu, Shuang Sun, Young Wang, Wenhong Chai, Yisheng |
| author_facet | Zhang, Yugang Li, Zefang Zhang, Jing Zhang, Long Li, Yonghong Liu, Shuang Sun, Young Wang, Wenhong Chai, Yisheng |
| contents | The domain dynamics and spin-spin correlation of 2D ferromagnets Cr2X2Te6 (X=Si, Ge) are investigated by a composite magnetoelectric method. The magnetic field-temperature phase diagrams for both in-plane and out-of-plane magnetic fields disclose a triple point around TC and 1 kOe, where ferromagnetic, paramagnetic, and spin-polarized phases coexist. The magnetoelectric signal shows peak features at the phase boundaries and reaches the maximum at the triple point, suggesting significant enhancement of spin-spin correlations at this point. A comparison between two systems reveals that the spin-spin correlations in Cr2Si2Te6 are stronger than that in Cr2Ge2Te6. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2207_01846 |
| institution | arXiv |
| publishDate | 2022 |
| record_format | arxiv |
| spellingShingle | Observation of enhanced spin-spin correlations at triple point in 2D ferromagnetic Cr2X2Te6 (X=Si, Ge) Zhang, Yugang Li, Zefang Zhang, Jing Zhang, Long Li, Yonghong Liu, Shuang Sun, Young Wang, Wenhong Chai, Yisheng Materials Science Strongly Correlated Electrons The domain dynamics and spin-spin correlation of 2D ferromagnets Cr2X2Te6 (X=Si, Ge) are investigated by a composite magnetoelectric method. The magnetic field-temperature phase diagrams for both in-plane and out-of-plane magnetic fields disclose a triple point around TC and 1 kOe, where ferromagnetic, paramagnetic, and spin-polarized phases coexist. The magnetoelectric signal shows peak features at the phase boundaries and reaches the maximum at the triple point, suggesting significant enhancement of spin-spin correlations at this point. A comparison between two systems reveals that the spin-spin correlations in Cr2Si2Te6 are stronger than that in Cr2Ge2Te6. |
| title | Observation of enhanced spin-spin correlations at triple point in 2D ferromagnetic Cr2X2Te6 (X=Si, Ge) |
| topic | Materials Science Strongly Correlated Electrons |
| url | https://arxiv.org/abs/2207.01846 |