Magnetic fluctuations and superconductivity in YbPd${}_2$Sn

Abstract

We report muon spin relaxation and inelastic neutron measurements on the Heusler system YbPd${}_2$Sn. Localised anisotropic and quasi-elastic Yb magnetic fluctuations are observed below $T=150$K. Both $\mu$SR and neutron data indicate a slowing-down of the spin-fluctuations, upon lowering the temperature, similar to that observed in Kondo lattices. The temperature dependence of the quasi-elastic neutron signal is compatible with a crystal-electric field scheme having a ${\Gamma }_7^{\mathrm{CEF}}$ ground state. The muon depolarization rate exhibits an additional contribution upon decreasing the temperature below $T_{\mathrm{c}}$ suggesting a close interplay between magnetic fluctuations and the superconducting state.

Author list updated, acknowledgements added

Cited by in corpus (2)

• Muon-spin rotation studies of SmFeAsO_0.85 and NdFeAsO_0.85 superconductors
• μSR and NMR study of the superconducting Heusler compound YPd2Sn