Giant Sommerfeld coefficient in the heavy-fermion YbBiPt

Z. Ropka

Giant Sommerfeld coefficient in the heavy-fermion YbBiPt

Strongly Correlated Electrons 2008-10-08 v1

Authors: Z. Ropka

Abstract

It has been derived that the Sommerfeld coefficient $\gamma$ as large as 25 J/K $^2$ mol can be theoretically accounted for provided the charge f-electron fluctuations are substantially suppressed. This result enables the understanding of the heavy-fermion YbBiPt ( $\gamma$ =8 J/K $^2$ mol) as the spin fluctuator and should stimulate the experimental specific-heat research at low temperatures.

Keywords

Sommerfeld coefficient heavy-fermion YbBiPt f-electron fluctuations specific heat

Cite

@article{arxiv.cond-mat/0005363,
  title  = {Giant Sommerfeld coefficient in the heavy-fermion YbBiPt},
  author = {Z. Ropka},
  journal= {arXiv preprint arXiv:cond-mat/0005363},
  year   = {2008}
}

Comments

3 pages in RevTex, no figure

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