Evidence for Novel Pairing State in Noncentrosymmetric Superconductor CePt3Si: 29Si-NMR Knight Shift Study

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dc.creatorYogi, Mamoru
dc.creatorMukuda, Hidekazu
dc.creatorKitaoka, Yoshio
dc.creatorHashimoto, Shin
dc.creatorYasuda, Takashi
dc.creatorSettai, Rikio
dc.creatorMatsuda, Tatsuma D
dc.creatorHaga, Yoshinori
dc.creatorOnuki, Yoshichika
dc.creatorRogl, Peter
dc.creatorBauer, Ernst
dc.date2006-01-15
dc.date.accessioned2026-07-07T06:57:35Z
dc.date.available2026-07-07T06:57:35Z
dc.descriptionWe report the measurements of the $^{29}$Si Knight shift $^{29}K$ on the noncentrosymmetric heavy-fermion compound CePt$_{3}$Si in which antiferromagnetism (AFM) with $T_{\rm N}=2.2$ K coexists with superconductivity (SC) with $T_{c}=0.75$ K. Its spin part $^{29}K_{\rm s}$, which is deduced to be $K_{\rm s}^{c}\ge 0.11$ and 0.16% at respective magnetic fields $H=2.0061$ and 0.8671 T, does not decrease across the superconducting transition temperature $T_{c}$ for the field along the c-axis. The temperature dependence of nuclear spin-lattice relaxation of $^{195}$Pt below $T_{c}$ has been accounted for by a Cooper pairing model with a two-component order parameter composed of spin-singlet and spin-triplet pairing components. From this result, it is shown that the Knight-shift data are consistent with the occurrence of the two-component order parameter for CePt$_{3}$Si.
dc.description4pages, 4figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0601317
dc.identifierhttp://arxiv.org/abs/cond-mat/0601317
dc.identifierJ. Phys. Soc. Jpn. 75 (2006) 013709
dc.identifierdoi:10.1143/JPSJ.75.013709
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/107017
dc.subjectSuperconductivity
dc.subjectStrongly Correlated Electrons
dc.titleEvidence for Novel Pairing State in Noncentrosymmetric Superconductor CePt3Si: 29Si-NMR Knight Shift Study
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