Unified picture of superconductivity and magnetism in CeRh$_2$As$_2$
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arXiv
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| Autores principales: | , , |
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| Formato: | Preprint |
| Publicado: |
2024
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| _version_ | 1866913973660549120 |
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| author | Lee, Changhee Agterberg, Daniel F. Brydon, P. M. R. |
| author_facet | Lee, Changhee Agterberg, Daniel F. Brydon, P. M. R. |
| contents | We study the micorscopic origin of the multiple superconducting and magnetic phases observed in CeRh$_2$As$_2$. We exploit the existence of a van Hove singularity enforced by the nonsymmorphic symmetry to conduct a renormalization group analysis. When Fermi-surface nesting is strong, we find two closely-competing superconducting states with opposite parities, as well as an instability towards specific spin-density wave states, consistent with key features of the phase diagram of CeRh$_2$As$_2$. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2407_00536 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Unified picture of superconductivity and magnetism in CeRh$_2$As$_2$ Lee, Changhee Agterberg, Daniel F. Brydon, P. M. R. Superconductivity Strongly Correlated Electrons We study the micorscopic origin of the multiple superconducting and magnetic phases observed in CeRh$_2$As$_2$. We exploit the existence of a van Hove singularity enforced by the nonsymmorphic symmetry to conduct a renormalization group analysis. When Fermi-surface nesting is strong, we find two closely-competing superconducting states with opposite parities, as well as an instability towards specific spin-density wave states, consistent with key features of the phase diagram of CeRh$_2$As$_2$. |
| title | Unified picture of superconductivity and magnetism in CeRh$_2$As$_2$ |
| topic | Superconductivity Strongly Correlated Electrons |
| url | https://arxiv.org/abs/2407.00536 |