Critical fields and Landau-Ginzburg parameters of the heavy-fermion superconductor UPt3

Zuyu Zhao*, F. Behroozi, S. Adenwalla, Y. Guan, J. B. Ketterson, Bimal K. Sarma, D. G. Hinks

*Corresponding author for this work

Research output: Contribution to journalArticle

13 Scopus citations

Abstract

Measurements of both the lower and upper critical fields along all three principal axes of the heavy-fermion superconductor UPt3 have been performed. A kink in the temperature dependence of the lower critical field, Hc1, is observed for all three orientations, which is in agreement with a recent theory by Hess, Tokuyasu, and Sauls. Also, an anisotropy of the temperature dependence of the lower critical field is observed at low temperatures (T<290 mK). The Landau-Ginzburg parameters are estimated from the experimental results.

Original languageEnglish (US)
Pages (from-to)13720-13723
Number of pages4
JournalPhysical Review B
Volume43
Issue number16
DOIs
StatePublished - 1991

ASJC Scopus subject areas

  • Condensed Matter Physics

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    Zhao, Z., Behroozi, F., Adenwalla, S., Guan, Y., Ketterson, J. B., Sarma, B. K., & Hinks, D. G. (1991). Critical fields and Landau-Ginzburg parameters of the heavy-fermion superconductor UPt3. Physical Review B, 43(16), 13720-13723. https://doi.org/10.1103/PhysRevB.43.13720