Magnetically induced quadrupole splitting and hyperfine field in NpFeGa5

Yoshiya Homma, Saburo Nasu, Dai Aoki, Koji Kaneko, Naoto Metoki, Etsuji Yamamoto, Akio Nakamura, Shotaro Morimoto, Hiroshi Yasuoka, Yoshichika Onuki, Yoshinobu Shiokawa

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)

Abstract

57Fe Mössbauer spectroscopy has been performed for the paramagnet UFeGa5 and antiferromagnet NpFeGa5 (TN=118 K) at the temperature between 4.2 and 298 K. Hyperfine magnetic field Hhf at Fe nucleus of the NpFeGa5 reaches 1.9 T at 10 K. Observation of the quadrupole splitting at Fe sites below the Néel temperature implies that the origin of Hhf is not only due to the dipole field from magnetic Np atoms, but also from magnetic Fe atoms.

Original languageEnglish
Pages (from-to)1105-1107
Number of pages3
JournalPhysica B: Condensed Matter
Volume359-361
Issue numberSPEC. ISS.
DOIs
Publication statusPublished - 2005 Apr 30

Keywords

  • Antiferromagnetic order
  • Fe Mössbauer spectroscopy
  • Hyperfine field
  • NpFeGa
  • Quadrupole splitting
  • UFeGa

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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