Unusually weak irradiation effects in anisotropic iron-based superconductor RbCa2Fe4As4F2
We report on the effects of 3.5 MeV proton irradiation in RbCa2Fe4As4F2, an iron-based superconductor with unusual properties in between those of the pnictides and of the cuprate high-temperature superconductors. We studied how structural disorder introduced by ion bombardment affects the critical t...
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2024-01-01
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| Series: | Frontiers in Physics |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fphy.2023.1336501/full |
| _version_ | 1827381153104920576 |
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| author | Daniele Torsello Daniele Torsello Erik Piatti Michela Fracasso Michela Fracasso Roberto Gerbaldo Roberto Gerbaldo Laura Gozzelino Laura Gozzelino Xiaolei Yi Xiangzhuo Xing Zhixiang Shi Dario Daghero Gianluca Ghigo Gianluca Ghigo |
| author_facet | Daniele Torsello Daniele Torsello Erik Piatti Michela Fracasso Michela Fracasso Roberto Gerbaldo Roberto Gerbaldo Laura Gozzelino Laura Gozzelino Xiaolei Yi Xiangzhuo Xing Zhixiang Shi Dario Daghero Gianluca Ghigo Gianluca Ghigo |
| author_sort | Daniele Torsello |
| collection | DOAJ |
| description | We report on the effects of 3.5 MeV proton irradiation in RbCa2Fe4As4F2, an iron-based superconductor with unusual properties in between those of the pnictides and of the cuprate high-temperature superconductors. We studied how structural disorder introduced by ion bombardment affects the critical temperature, superfluid density and gap values by combining a coplanar waveguide resonator technique, electric transport measurements and point-contact Andreev-reflection spectroscopy. We find an unusually weak dependence of the superconducting properties on the amount of disorder in this material when compared to other iron-based superconductors under comparable irradiation conditions. The nodal multigap state exhibited by pristine RbCa2Fe4As4F2 is also robust against proton irradiation, with a two-band d-d model being the one that best fits the experimental data. |
| first_indexed | 2024-03-08T13:50:07Z |
| format | Article |
| id | doaj.art-3c044f43088c46f7ac002def2e96c3be |
| institution | Directory Open Access Journal |
| issn | 2296-424X |
| language | English |
| last_indexed | 2024-03-08T13:50:07Z |
| publishDate | 2024-01-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Physics |
| spelling | doaj.art-3c044f43088c46f7ac002def2e96c3be2024-01-16T04:16:22ZengFrontiers Media S.A.Frontiers in Physics2296-424X2024-01-011110.3389/fphy.2023.13365011336501Unusually weak irradiation effects in anisotropic iron-based superconductor RbCa2Fe4As4F2Daniele Torsello0Daniele Torsello1Erik Piatti2Michela Fracasso3Michela Fracasso4Roberto Gerbaldo5Roberto Gerbaldo6Laura Gozzelino7Laura Gozzelino8Xiaolei Yi9Xiangzhuo Xing10Zhixiang Shi11Dario Daghero12Gianluca Ghigo13Gianluca Ghigo14Department of Applied Science and Technology, Politecnico di Torino, Torino, ItalyIstituto Nazionale di Fisica Nucleare, Sezione di Torino, Torino, ItalyDepartment of Applied Science and Technology, Politecnico di Torino, Torino, ItalyDepartment of Applied Science and Technology, Politecnico di Torino, Torino, ItalyIstituto Nazionale di Fisica Nucleare, Sezione di Torino, Torino, ItalyDepartment of Applied Science and Technology, Politecnico di Torino, Torino, ItalyIstituto Nazionale di Fisica Nucleare, Sezione di Torino, Torino, ItalyDepartment of Applied Science and Technology, Politecnico di Torino, Torino, ItalyIstituto Nazionale di Fisica Nucleare, Sezione di Torino, Torino, ItalySchool of Physics, Southeast University, Nanjing, ChinaSchool of Physics and Physical Engineering, Qufu Normal University, Qufu, ChinaSchool of Physics, Southeast University, Nanjing, ChinaDepartment of Applied Science and Technology, Politecnico di Torino, Torino, ItalyDepartment of Applied Science and Technology, Politecnico di Torino, Torino, ItalyIstituto Nazionale di Fisica Nucleare, Sezione di Torino, Torino, ItalyWe report on the effects of 3.5 MeV proton irradiation in RbCa2Fe4As4F2, an iron-based superconductor with unusual properties in between those of the pnictides and of the cuprate high-temperature superconductors. We studied how structural disorder introduced by ion bombardment affects the critical temperature, superfluid density and gap values by combining a coplanar waveguide resonator technique, electric transport measurements and point-contact Andreev-reflection spectroscopy. We find an unusually weak dependence of the superconducting properties on the amount of disorder in this material when compared to other iron-based superconductors under comparable irradiation conditions. The nodal multigap state exhibited by pristine RbCa2Fe4As4F2 is also robust against proton irradiation, with a two-band d-d model being the one that best fits the experimental data.https://www.frontiersin.org/articles/10.3389/fphy.2023.1336501/full12442 iron-based superconductorsproton irradiationsuperfluid densityorder parameter symmetrypoint-contact spectroscopy |
| spellingShingle | Daniele Torsello Daniele Torsello Erik Piatti Michela Fracasso Michela Fracasso Roberto Gerbaldo Roberto Gerbaldo Laura Gozzelino Laura Gozzelino Xiaolei Yi Xiangzhuo Xing Zhixiang Shi Dario Daghero Gianluca Ghigo Gianluca Ghigo Unusually weak irradiation effects in anisotropic iron-based superconductor RbCa2Fe4As4F2 Frontiers in Physics 12442 iron-based superconductors proton irradiation superfluid density order parameter symmetry point-contact spectroscopy |
| title | Unusually weak irradiation effects in anisotropic iron-based superconductor RbCa2Fe4As4F2 |
| title_full | Unusually weak irradiation effects in anisotropic iron-based superconductor RbCa2Fe4As4F2 |
| title_fullStr | Unusually weak irradiation effects in anisotropic iron-based superconductor RbCa2Fe4As4F2 |
| title_full_unstemmed | Unusually weak irradiation effects in anisotropic iron-based superconductor RbCa2Fe4As4F2 |
| title_short | Unusually weak irradiation effects in anisotropic iron-based superconductor RbCa2Fe4As4F2 |
| title_sort | unusually weak irradiation effects in anisotropic iron based superconductor rbca2fe4as4f2 |
| topic | 12442 iron-based superconductors proton irradiation superfluid density order parameter symmetry point-contact spectroscopy |
| url | https://www.frontiersin.org/articles/10.3389/fphy.2023.1336501/full |
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