de Haas-van Alphen Oscillations of LuNi2B2C in Pulsed High Magnetic Fields

Masashi Tokunaga, Noboru Miura, Hidenori Takagi, R. J. Cava

Research output: Contribution to journalArticle

5 Scopus citations

Abstract

We have observed de Haas-van Alphen (dHvA) oscillations in the borocarbide superconductor, LuNi2B2C, under pulsed magnetic fields up to 40 T. The observed oscillation frequency, 288 + 7 T, corresponds to a cross section of 2.75 × 10−2 ±0.07 × 10−2 Å−2. The temperature dependence of the oscillation amplitude provides a cyclotron effective mass of [formula omitted] in the ab plane. By comparison with the results of band structure calculations, the oscillation can be assigned to a Lu 5d band which forms a small Fermi pocket near the Γ point. These results support the validity of the band structure calculation as a good starting point for understanding this class of superconductors.

Original languageEnglish (US)
Pages (from-to)1458-1461
Number of pages4
JournalJournal of the Physical Society of Japan
Volume64
Issue number5
DOIs
StatePublished - Jan 1 1995
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Keywords

  • Lu 5d band
  • LuNiBC
  • borocarbide intermetallic superconductor
  • cyclotron effective mass
  • de Haas-van Alphen oscillations
  • pulsed magnetic fields

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