De Haas-van Alphen oscillation in both the normal and superconducting mixed states of UPd2Al3

Yoshinori Haga, Yoshihiko Inada, Kenji Sakurai, Yoshihumi Tokiwa, Etsuji Yamamoto, Tetsuo Honma, Yoshichika Onuki

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

We succeeded in growing a high-quality single crystal of the heavy fermion superconductor UPd2Al3 and observed the de Haas-van Alphen (dHvA) oscillation in both the normal and superconducting mixed states. The dHvA frequency, which is proportional to a maximum cross-sectional area of the electron Fermi surface labelled α. does not change in magnitude between the normal and mixed states, while the cyclotron mass of 5.7 m0 in the normal state is reduced to 3.577 m0 at 0.7 Hc2, and the corresponding Dingle temperature of 0.20 K in the normal state is increased to 0.39 K at 0.7 Hc2. Here, Hc2 of 39kOe is the upper critical field along the [0001] direction in the hexagonal structure.

Original languageEnglish
Pages (from-to)342-345
Number of pages4
Journaljournal of the physical society of japan
Volume68
Issue number2
DOIs
Publication statusPublished - Feb 1999
Externally publishedYes

Keywords

  • De Haas-van Alphen Effect
  • Heavy fermion superconductor
  • UPdAl

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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