Nodal d-wave pairing from spin fluctuations in a thermally disordered anti-ferromagnet
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arXiv
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| Format: | Preprint |
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2024
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| _version_ | 1866910418108153856 |
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| author | Bultinck, Nick |
| author_facet | Bultinck, Nick |
| contents | We consider electron pairing in a two-dimensional thermally disordered itinerant anti-ferromagnet. It is shown that transverse spin fluctuations in such a state can give rise to superconductivity with a sizeable critical temperature $T_c$. Below $T_c$ there is quasi-long-range spin-singlet and $d_{x^2-y^2}$ superconducting order, together with fluctuating triplet order at momentum $(π,π)$. The singlet pairs we find are tightly bound together, and the pair wavefunction has a purely inter-sublattice structure due to the U(1) spin rotation symmetry of the anti-ferromagnet. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2403_07999 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Nodal d-wave pairing from spin fluctuations in a thermally disordered anti-ferromagnet Bultinck, Nick Superconductivity Strongly Correlated Electrons We consider electron pairing in a two-dimensional thermally disordered itinerant anti-ferromagnet. It is shown that transverse spin fluctuations in such a state can give rise to superconductivity with a sizeable critical temperature $T_c$. Below $T_c$ there is quasi-long-range spin-singlet and $d_{x^2-y^2}$ superconducting order, together with fluctuating triplet order at momentum $(π,π)$. The singlet pairs we find are tightly bound together, and the pair wavefunction has a purely inter-sublattice structure due to the U(1) spin rotation symmetry of the anti-ferromagnet. |
| title | Nodal d-wave pairing from spin fluctuations in a thermally disordered anti-ferromagnet |
| topic | Superconductivity Strongly Correlated Electrons |
| url | https://arxiv.org/abs/2403.07999 |