Multiple Superconducting Phases in Palladium Deuteride Induced by Nuclear-Spin Isotope Effect
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arXiv
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| Autori principali: | , , , , , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2026
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| _version_ | 1866914582655664128 |
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| author | Kato, Ryoma Yoshida, Ten-ichiro Iimori, Riku Shiga, Masanobu Inagaki, Yuji Kimura, Takashi Ienaga, Koichiro Kawae, Tatsuya |
| author_facet | Kato, Ryoma Yoshida, Ten-ichiro Iimori, Riku Shiga, Masanobu Inagaki, Yuji Kimura, Takashi Ienaga, Koichiro Kawae, Tatsuya |
| contents | We study the superconducting properties of high-quality PdD$_{x}$ films. The resistivity shows a sharp drop at $T$ $\sim$1.7 K, marking the superconducting transition. However, a finite resistivity persists and vanishes at $\sim$0.6 K. The temperature and magnetic-field dependences of the resistivity exhibit multiple anomalies within the superconducting state, revealing distinct superconducting phases. Such anomalies are absent in PdH$_{x}$ films. These results demonstrate a clear qualitative difference between the superconducting phase diagrams of PdD$_{x}$ and PdH$_{x}$, highlighting the role of nuclear-spin isotope effects. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2605_20966 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Multiple Superconducting Phases in Palladium Deuteride Induced by Nuclear-Spin Isotope Effect Kato, Ryoma Yoshida, Ten-ichiro Iimori, Riku Shiga, Masanobu Inagaki, Yuji Kimura, Takashi Ienaga, Koichiro Kawae, Tatsuya Superconductivity We study the superconducting properties of high-quality PdD$_{x}$ films. The resistivity shows a sharp drop at $T$ $\sim$1.7 K, marking the superconducting transition. However, a finite resistivity persists and vanishes at $\sim$0.6 K. The temperature and magnetic-field dependences of the resistivity exhibit multiple anomalies within the superconducting state, revealing distinct superconducting phases. Such anomalies are absent in PdH$_{x}$ films. These results demonstrate a clear qualitative difference between the superconducting phase diagrams of PdD$_{x}$ and PdH$_{x}$, highlighting the role of nuclear-spin isotope effects. |
| title | Multiple Superconducting Phases in Palladium Deuteride Induced by Nuclear-Spin Isotope Effect |
| topic | Superconductivity |
| url | https://arxiv.org/abs/2605.20966 |