Superconducting nitridized-aluminum thin films
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arXiv
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| Main Authors: | , , , , , , , , |
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| Format: | Preprint |
| Published: |
2023
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| _version_ | 1866914742765879296 |
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| author | Torras-Coloma, Alba de Olcoz, Leyre Martínez Céspedes, Eva Bertoldo, Elia López-Núñez, David Paul, Sagar Wernsdorfer, Wolfgang Rius, Gemma Forn-Díaz, Pol |
| author_facet | Torras-Coloma, Alba de Olcoz, Leyre Martínez Céspedes, Eva Bertoldo, Elia López-Núñez, David Paul, Sagar Wernsdorfer, Wolfgang Rius, Gemma Forn-Díaz, Pol |
| contents | We report the direct observation of superconductivity in nitridized-aluminum thin films. The films are produced by sputtering deposition of aluminum in a controlled mixture of nitrogen diluted in argon. The concentration of applied nitrogen directly determines the properties of the superconducting thin films. We observe samples displaying critical temperatures up to 3.38$\pm$0.01K and resilience to in-plane magnetic fields well above 1T, with good reproducibility of the results. This work represents an unambiguous demonstration of tunable superconductivity in aluminum-based nitridized thin films. Our results put forward nitridized aluminum as a promising material to be employed in superconducting quantum circuits for quantum technology applications. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2308_06240 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Superconducting nitridized-aluminum thin films Torras-Coloma, Alba de Olcoz, Leyre Martínez Céspedes, Eva Bertoldo, Elia López-Núñez, David Paul, Sagar Wernsdorfer, Wolfgang Rius, Gemma Forn-Díaz, Pol Superconductivity Quantum Physics We report the direct observation of superconductivity in nitridized-aluminum thin films. The films are produced by sputtering deposition of aluminum in a controlled mixture of nitrogen diluted in argon. The concentration of applied nitrogen directly determines the properties of the superconducting thin films. We observe samples displaying critical temperatures up to 3.38$\pm$0.01K and resilience to in-plane magnetic fields well above 1T, with good reproducibility of the results. This work represents an unambiguous demonstration of tunable superconductivity in aluminum-based nitridized thin films. Our results put forward nitridized aluminum as a promising material to be employed in superconducting quantum circuits for quantum technology applications. |
| title | Superconducting nitridized-aluminum thin films |
| topic | Superconductivity Quantum Physics |
| url | https://arxiv.org/abs/2308.06240 |