Localization in materials with several conducting bands as a method to boost superconductivity
Abstract Strong disorder exerts two opposing effects on a superconducting material. On one hand, it leads to localization of electrons and Cooper pairs, resulting in spatial fragmentation of the condensate state. It enhances the local density of single-particle states, increasing the binding energy...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2025-08-01
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| Series: | Communications Physics |
| Online Access: | https://doi.org/10.1038/s42005-025-02241-8 |
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| _version_ | 1849333160841576448 |
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| author | Vyacheslav D. Neverov Alexander E. Lukyanov Andrey V. Krasavin Arkady A. Shanenko Mihail D. Croitoru Alexei Vagov |
| author_facet | Vyacheslav D. Neverov Alexander E. Lukyanov Andrey V. Krasavin Arkady A. Shanenko Mihail D. Croitoru Alexei Vagov |
| author_sort | Vyacheslav D. Neverov |
| collection | DOAJ |
| description | Abstract Strong disorder exerts two opposing effects on a superconducting material. On one hand, it leads to localization of electrons and Cooper pairs, resulting in spatial fragmentation of the condensate state. It enhances the local density of single-particle states, increasing the binding energy of Cooper pairs and the critical temperature at which the condensate state appears. On the other hand, it destroys the long-range coherence, suppressing superconductivity and reducing the corresponding critical temperature. This work demonstrates that if such a disordered superconductor is coupled to a clean or weakly disordered conducting material, the long-range coherence is restored via the proximity effect. As a result, the coexistence of the two subsystems combines the advantages of the high critical temperature of the disordered superconductor and the global supercurrent of the clean one. This synergy effect is robust and can occur in superconducting multi-band and heterostructures, whether they are disordered or have artificial superstructures. |
| format | Article |
| id | doaj-art-1f46c1fae30a4eebbb8d8699ae453690 |
| institution | Kabale University |
| issn | 2399-3650 |
| language | English |
| publishDate | 2025-08-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Communications Physics |
| spelling | doaj-art-1f46c1fae30a4eebbb8d8699ae4536902025-08-20T03:45:57ZengNature PortfolioCommunications Physics2399-36502025-08-018111010.1038/s42005-025-02241-8Localization in materials with several conducting bands as a method to boost superconductivityVyacheslav D. Neverov0Alexander E. Lukyanov1Andrey V. Krasavin2Arkady A. Shanenko3Mihail D. Croitoru4Alexei Vagov5Moscow Center for Advanced StudiesHSE UniversityMoscow Center for Advanced StudiesMoscow Center for Advanced StudiesHSE UniversityHSE UniversityAbstract Strong disorder exerts two opposing effects on a superconducting material. On one hand, it leads to localization of electrons and Cooper pairs, resulting in spatial fragmentation of the condensate state. It enhances the local density of single-particle states, increasing the binding energy of Cooper pairs and the critical temperature at which the condensate state appears. On the other hand, it destroys the long-range coherence, suppressing superconductivity and reducing the corresponding critical temperature. This work demonstrates that if such a disordered superconductor is coupled to a clean or weakly disordered conducting material, the long-range coherence is restored via the proximity effect. As a result, the coexistence of the two subsystems combines the advantages of the high critical temperature of the disordered superconductor and the global supercurrent of the clean one. This synergy effect is robust and can occur in superconducting multi-band and heterostructures, whether they are disordered or have artificial superstructures.https://doi.org/10.1038/s42005-025-02241-8 |
| spellingShingle | Vyacheslav D. Neverov Alexander E. Lukyanov Andrey V. Krasavin Arkady A. Shanenko Mihail D. Croitoru Alexei Vagov Localization in materials with several conducting bands as a method to boost superconductivity Communications Physics |
| title | Localization in materials with several conducting bands as a method to boost superconductivity |
| title_full | Localization in materials with several conducting bands as a method to boost superconductivity |
| title_fullStr | Localization in materials with several conducting bands as a method to boost superconductivity |
| title_full_unstemmed | Localization in materials with several conducting bands as a method to boost superconductivity |
| title_short | Localization in materials with several conducting bands as a method to boost superconductivity |
| title_sort | localization in materials with several conducting bands as a method to boost superconductivity |
| url | https://doi.org/10.1038/s42005-025-02241-8 |
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