Disorder-induced suppression of superconductivity in infinite-layer nickelates
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arXiv
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| Main Authors: | , , , , , , , , , , , , |
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| Format: | Preprint |
| Published: |
2025
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| _version_ | 1866911158776102912 |
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| author | Ranna, Abhishek Grasset, Romain Gonzalez, Martin Lee, Kyuho Wang, Bai Yang Morales, Edgar Abarca Theuss, Florian Filipiak, Zuzanna H. Moravec, Michal Konczykowski, Marcin Hwang, Harold Y. Mackenzie, Andrew P. Goodge, Berit H. |
| author_facet | Ranna, Abhishek Grasset, Romain Gonzalez, Martin Lee, Kyuho Wang, Bai Yang Morales, Edgar Abarca Theuss, Florian Filipiak, Zuzanna H. Moravec, Michal Konczykowski, Marcin Hwang, Harold Y. Mackenzie, Andrew P. Goodge, Berit H. |
| contents | The pairing symmetry of superconducting infinite-layer nickelates is a fundamental yet experimentally challenging question. We employ high-energy electron irradiation to induce disorder in superconducting Nd$_{0.825}$Sr$_{0.175}$NiO$_2$ thin films and examine the impact of pair-breaking defects on superconductivity and elucidate the nature of the superconducting gap. Our measurements reveal a complete suppression of superconductivity with increasing disorder, suggesting an unconventional, sign-changing order parameter. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2506_09543 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Disorder-induced suppression of superconductivity in infinite-layer nickelates Ranna, Abhishek Grasset, Romain Gonzalez, Martin Lee, Kyuho Wang, Bai Yang Morales, Edgar Abarca Theuss, Florian Filipiak, Zuzanna H. Moravec, Michal Konczykowski, Marcin Hwang, Harold Y. Mackenzie, Andrew P. Goodge, Berit H. Superconductivity The pairing symmetry of superconducting infinite-layer nickelates is a fundamental yet experimentally challenging question. We employ high-energy electron irradiation to induce disorder in superconducting Nd$_{0.825}$Sr$_{0.175}$NiO$_2$ thin films and examine the impact of pair-breaking defects on superconductivity and elucidate the nature of the superconducting gap. Our measurements reveal a complete suppression of superconductivity with increasing disorder, suggesting an unconventional, sign-changing order parameter. |
| title | Disorder-induced suppression of superconductivity in infinite-layer nickelates |
| topic | Superconductivity |
| url | https://arxiv.org/abs/2506.09543 |