Highly efficient superconducting diode effect in unconventional $p$-wave magnets
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arXiv
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| Format: | Preprint |
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2026
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| _version_ | 1866918289914986496 |
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| author | Froldi, Igor de M. Freire, Hermann |
| author_facet | Froldi, Igor de M. Freire, Hermann |
| contents | We investigate the emergence of superconducting phases, both with zero and finite Cooper-pair center of mass momenta, in recently proposed unconventional $p$-wave magnets. As a consequence, we find that, while these magnetic phases are in principle compatible with a conventional pairing state at zero field, a Fulde-Ferrell phase can generally be promoted as the leading instability under the application of a finite magnetic field. Interestingly, by calculating the efficiency of the superconducting diode effect of this finite momentum pairing state via a Ginzburg-Landau theory, we uncover that a high efficiency can be obtained in these systems for experimentally relevant spin splittings. Therefore, our prediction reveals that the experimental discovery of these new materials represents a promising platform for the construction of energy-efficient logic circuits that can potentially be used, e.g., in the fields of classical and quantum computing. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2601_09783 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Highly efficient superconducting diode effect in unconventional $p$-wave magnets Froldi, Igor de M. Freire, Hermann Superconductivity Strongly Correlated Electrons We investigate the emergence of superconducting phases, both with zero and finite Cooper-pair center of mass momenta, in recently proposed unconventional $p$-wave magnets. As a consequence, we find that, while these magnetic phases are in principle compatible with a conventional pairing state at zero field, a Fulde-Ferrell phase can generally be promoted as the leading instability under the application of a finite magnetic field. Interestingly, by calculating the efficiency of the superconducting diode effect of this finite momentum pairing state via a Ginzburg-Landau theory, we uncover that a high efficiency can be obtained in these systems for experimentally relevant spin splittings. Therefore, our prediction reveals that the experimental discovery of these new materials represents a promising platform for the construction of energy-efficient logic circuits that can potentially be used, e.g., in the fields of classical and quantum computing. |
| title | Highly efficient superconducting diode effect in unconventional $p$-wave magnets |
| topic | Superconductivity Strongly Correlated Electrons |
| url | https://arxiv.org/abs/2601.09783 |