Itinerant 5f Electrons and the fermi surface properties in an enhanced pauli paramagnet NpGe3

Dai Aoki, Hiroshi Yamagami, Yoshiya Homma, Yoshinobu Shiokawa, Etsuji Yamamoto Akio, Nakamurayoshinori Haga, Rikio Settai, Yoshichika Onuki

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

We succeeded in growing a high-quality single crystal of an enhanced Pauli paramagnet, NpGe3, by the Bi-flux method, and observed the de Haas-van Alphen (dHvA) effect. The topology of a Fermi surface is well explained by the relativistic linear augmented-plane-wave (LAPW) band calculations based on the 5f itinerant band model. The Fermi surface consists of a nearly spherical electron-Fermi surface with necks along the h100i direction, forming a hollow ball, centered at the R point, which is derived from the single band. The cyclotron effective mass is in the range from 2:6 to 16m0, which is enhanced approximately 3.5 times from the corresponding band mass.

Original languageEnglish
Pages (from-to)2149-2152
Number of pages4
Journaljournal of the physical society of japan
Volume74
Issue number8
DOIs
Publication statusPublished - 2005 Aug 1

Keywords

  • Band calculation
  • De Haas-van alphen effect
  • Fermi surface
  • NpGe

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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