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
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
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.
Riku Matsubayashi、Shiki Ogata、Taishi Ihara、Hiroyasu Matsudaira、Shunsaku Kitagawa、Kenji Ishida、Yusuke Nakai、Hitoshi Sugawara、Hideyuki Sato
物理学
Riku Matsubayashi,Shiki Ogata,Taishi Ihara,Hiroyasu Matsudaira,Shunsaku Kitagawa,Kenji Ishida,Yusuke Nakai,Hitoshi Sugawara,Hideyuki Sato.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[EB/OL].(2025-05-27)[2025-06-14].https://arxiv.org/abs/2505.20702.点此复制
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