NMR study of electronic state in CePt3Si

Abstract

In this article, we report the temperature dependence of spin-lattice relaxation rates at two Pt sites and one Si site in CePt3Si with a non-centrosymmetric structure center. 1/T1 for both Pt sites between 2 K and 300 K and 1/T1 of Si above 3 K might be explained by the contributions from the low-lying crystal-electric-field level and the quasiparticle due to the hybridization between the ground state and conduction electrons. Just below Tc no remarkable enhancement in 1/T1 was observed. The estimated value of superconducting gap is about 2Delta = 3kBTc.

2 pages with 2 EPS figures. uses phb-proc4-auth.cls. Accepted for publication in Physica B

References in corpus (2)

• Heavy fermion superconductivity and magnetic order in non-centrosymmetric $CeP{t}_{3}Si$
• Superconductivty without inversion symmetry: MnSi versus CePt_3Si

Cited by in corpus (6)

• Temperature Dependence of the Superfluid Density in a Noncentrosymmetric Superconductor
• Evidence for Novel Pairing State in Noncentrosymmetric Superconductor CePt3Si: 29Si-NMR Knight Shift Study
• Nonuniform Spin Triplet Superconductivity due to Antisymmetric Spin-Orbit Coupling in Noncentrosymmetric Superconductor CePt${}_3$Si
• Specific Heat Study of Magnetic and Superconducting Transitions in CePt3Si
• AC/DC Susceptibility of the Heavy-Fermion Superconductor CePt3Si under Pressure
• Point-contact spectroscopy of the heavy-fermion superconductor CePt${}_3$Si