Superconductivity and special symmetry of twisted tri-layer graphene in chiral model
Superconducting properties of twisted tri-layer graphene (TTG) are studied within the scope of the chiral model based on using the unitary matrix \(U \in SU(2)\) as an order parameter. To check the superconductor behavior of this system, the interaction with the external magnetic field \(B_0\) orien...
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| Format: | Article |
| Language: | English |
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Peoples’ Friendship University of Russia (RUDN University)
2024-12-01
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| Series: | Discrete and Continuous Models and Applied Computational Science |
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| Online Access: | https://journals.rudn.ru/miph/article/viewFile/43672/24669 |
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| author | Yuri P. Rybakov Medina Umar |
| author_facet | Yuri P. Rybakov Medina Umar |
| author_sort | Yuri P. Rybakov |
| collection | DOAJ |
| description | Superconducting properties of twisted tri-layer graphene (TTG) are studied within the scope of the chiral model based on using the unitary matrix \(U \in SU(2)\) as an order parameter. To check the superconductor behavior of this system, the interaction with the external magnetic field \(B_0\) oriented along the graphene sheets is switched on and the internal magnetic intensity in the center is calculated as the function of the twisting angle. Vanishing of this function, due to the Meissner effect, being the important feature of the superconductivity, the corresponding dependence of the magic twisting angle on \(B_0\) is calculated. The unusual effect of re-entrant superconductivity for large values of \(B_0\) is discussed. |
| format | Article |
| id | doaj-art-8a57361fee9646348983230e460d496d |
| institution | DOAJ |
| issn | 2658-4670 2658-7149 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | Peoples’ Friendship University of Russia (RUDN University) |
| record_format | Article |
| series | Discrete and Continuous Models and Applied Computational Science |
| spelling | doaj-art-8a57361fee9646348983230e460d496d2025-08-20T03:17:14ZengPeoples’ Friendship University of Russia (RUDN University)Discrete and Continuous Models and Applied Computational Science2658-46702658-71492024-12-0132444545110.22363/2658-4670-2024-32-4-445-45121069Superconductivity and special symmetry of twisted tri-layer graphene in chiral modelYuri P. Rybakov0https://orcid.org/0000-0002-7744-9725Medina Umar1RUDN UniversityRUDN UniversitySuperconducting properties of twisted tri-layer graphene (TTG) are studied within the scope of the chiral model based on using the unitary matrix \(U \in SU(2)\) as an order parameter. To check the superconductor behavior of this system, the interaction with the external magnetic field \(B_0\) oriented along the graphene sheets is switched on and the internal magnetic intensity in the center is calculated as the function of the twisting angle. Vanishing of this function, due to the Meissner effect, being the important feature of the superconductivity, the corresponding dependence of the magic twisting angle on \(B_0\) is calculated. The unusual effect of re-entrant superconductivity for large values of \(B_0\) is discussed.https://journals.rudn.ru/miph/article/viewFile/43672/24669tri-layer graphenechiral modelsuperconductivity |
| spellingShingle | Yuri P. Rybakov Medina Umar Superconductivity and special symmetry of twisted tri-layer graphene in chiral model Discrete and Continuous Models and Applied Computational Science tri-layer graphene chiral model superconductivity |
| title | Superconductivity and special symmetry of twisted tri-layer graphene in chiral model |
| title_full | Superconductivity and special symmetry of twisted tri-layer graphene in chiral model |
| title_fullStr | Superconductivity and special symmetry of twisted tri-layer graphene in chiral model |
| title_full_unstemmed | Superconductivity and special symmetry of twisted tri-layer graphene in chiral model |
| title_short | Superconductivity and special symmetry of twisted tri-layer graphene in chiral model |
| title_sort | superconductivity and special symmetry of twisted tri layer graphene in chiral model |
| topic | tri-layer graphene chiral model superconductivity |
| url | https://journals.rudn.ru/miph/article/viewFile/43672/24669 |
| work_keys_str_mv | AT yuriprybakov superconductivityandspecialsymmetryoftwistedtrilayergrapheneinchiralmodel AT medinaumar superconductivityandspecialsymmetryoftwistedtrilayergrapheneinchiralmodel |