Magnetic Field Dependence of the Spin Susceptibility on Conventional s-wave Superconductor LaRu$_4$P$_{12}$ Revealed by $^{31}$P-NMR and $^{139}$La-NMR
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| Main Authors: | , , , , , , , , |
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| Format: | Preprint |
| Published: |
2025
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| _version_ | 1866915306197221376 |
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| author | Matsubayashi, Riku Ogata, Shiki Ihara, Taishi Matsudaira, Hiroyasu Kitagawa, Shunsaku Ishida, Kenji Nakai, Yusuke Sugawara, Hitoshi Sato, Hideyuki |
| author_facet | Matsubayashi, Riku Ogata, Shiki Ihara, Taishi Matsudaira, Hiroyasu Kitagawa, Shunsaku Ishida, Kenji Nakai, Yusuke Sugawara, Hitoshi Sato, Hideyuki |
| contents | The magnetic field dependence of the spin part of Knight shift, which is proportional to the superconducting-state spin susceptibility, was investigated at two nuclear sites, $^{31}$P and $^{139}$La in a conventional s-wave superconductor LaRu$_4$P$_{12}$. After the analyses, we confirmed that the superconducting-state spin susceptibility is proportional to magnetic field, and connects to the normal-state spin susceptibility smoothly. This is a textbook example, when the superconductivity is broken with the orbital pair-breaking effect. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2505_20702 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Magnetic Field Dependence of the Spin Susceptibility on Conventional s-wave Superconductor LaRu$_4$P$_{12}$ Revealed by $^{31}$P-NMR and $^{139}$La-NMR Matsubayashi, Riku Ogata, Shiki Ihara, Taishi Matsudaira, Hiroyasu Kitagawa, Shunsaku Ishida, Kenji Nakai, Yusuke Sugawara, Hitoshi Sato, Hideyuki Superconductivity The magnetic field dependence of the spin part of Knight shift, which is proportional to the superconducting-state spin susceptibility, was investigated at two nuclear sites, $^{31}$P and $^{139}$La in a conventional s-wave superconductor LaRu$_4$P$_{12}$. After the analyses, we confirmed that the superconducting-state spin susceptibility is proportional to magnetic field, and connects to the normal-state spin susceptibility smoothly. This is a textbook example, when the superconductivity is broken with the orbital pair-breaking effect. |
| title | Magnetic Field Dependence of the Spin Susceptibility on Conventional s-wave Superconductor LaRu$_4$P$_{12}$ Revealed by $^{31}$P-NMR and $^{139}$La-NMR |
| topic | Superconductivity |
| url | https://arxiv.org/abs/2505.20702 |