Magnetic fluctuations and superconductivity in YbPd$_2$Sn

A. Amato; B. Roessli; P. Fischer; N. Bernhoeft; A. Stunault; C. Baines; A. Dönni; H. Sugawara

doi:10.1016/S0921-4526(02)01631-9

Magnetic fluctuations and superconductivity in YbPd$_2$Sn

Strongly Correlated Electrons 2009-11-07 v2 Superconductivity

Authors: A. Amato , B. Roessli , P. Fischer , N. Bernhoeft , A. Stunault , C. Baines , A. Dönni , H. Sugawara

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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 $\Gamma_7^{\rm CEF}$ ground state. The muon depolarization rate exhibits an additional contribution upon decreasing the temperature below $T_{\rm c}$ suggesting a close interplay between magnetic fluctuations and the superconducting state.

Keywords

YbPd2Sn magnetic fluctuations superconductivity muon spin relaxation crystal field

Cite

@article{arxiv.cond-mat/0205617,
  title  = {Magnetic fluctuations and superconductivity in YbPd$_2$Sn},
  author = {A. Amato and B. Roessli and P. Fischer and N. Bernhoeft and A. Stunault and C. Baines and A. Dönni and H. Sugawara},
  journal= {arXiv preprint arXiv:cond-mat/0205617},
  year   = {2009}
}

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Author list updated, acknowledgements added

Magnetic fluctuations and superconductivity in YbPd$_2$Sn

Abstract

Keywords

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