Low-temperature susceptibility of the noncentrosymmetric superconductor CePt3Si
We report ac susceptibility measurements of polycrystalline CePt 3Si down to 60 mK and in applied fields up to 9 T. In a zero applied field, a full Meissner state emerges at temperatures T/Tc < 0.3, where Tc = 0.65 K is the onset transition temperature. Though transport measurements show a relatively high upper critical field B c2 ∼ 4-5 T, the low-temperature susceptibility χ′ is quite fragile to the applied field, with χ′ diminishing rapidly in fields of a few kG. Interestingly, the field dependence of χ′ is well described by the power law 4πχ′ + 1 = (B/Bc) 1/2, where Bc is the field at which the onset of resistance is observed in transport measurements. © 2005 The American Physical Society.
Publication Source (Journal or Book title)
Physical Review Letters
Young, D., Moldovan, M., Wu, X., Adams, P., & Chan, J. (2005). Low-temperature susceptibility of the noncentrosymmetric superconductor CePt3Si. Physical Review Letters, 94 (10) https://doi.org/10.1103/PhysRevLett.94.107001