Magnetic Field Effect on s-wave Superconductor LaRu4P12 Studied by 31P-NMR

Abstract

We have performed 31P-NMR measurements on the s-wave superconductor LaRu4P12 to investigate the magnetic field effect of the nuclear spin-lattice relaxation rate 1/T1 on a conventional full-gap superconductor. With increasing magnetic field, the Hebel-Slichter peak immediately below Tc in 1=T1 was suppressed, and the magnetic field dependence of 1/T1 at 0.8 K, well below Tc, was proportional to H2. These behaviors can be fully understood by the orbital pair-breaking effect in a single-band s-wave superconductor

7pages, 4figures

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Cited by in corpus (3)

• Uniform electronic states and $s$-wave superconductivity in a strongly disordered high-entropy compound (RuRhPdIr)${}_{0.6}$Pt${}_{0.4}$Sb
• 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
• Superconducting Properties on Two-dimensional Quasicrystal (Ta${}_{0.95}$Cu${}_{0.05}$)${}_{1.6}$Te Studied with ${}^{125}$Te-NMR