Magnetic form factor of URu2Si2

K. Kuwahara, M. Kohgi, K. Iwasa, M. Nishi, K. Nakajima, M. Yokoyama, H. Amitsuka

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)


We report the field-induced magnetic form factor of the heavy-electron system URu2Si2 obtained by using polarized neutrons. The neutron experiments were performed on the two single crystals at 60 K by applying a magnetic field of 6 T along the tetragonal c-axis. The observed magnetic form factor is close to the theoretical 5f form factor of the free U3 + or U4 + ions calculated by the dipole approximation as other U-based intermetallic superconductors. However, the extrapolated value at sin θ / λ = 0 ( 0.07 μB / U ) is smaller than the bulk magnetization value ( 0.10 μB / U ). Therefore, this result indicates some contribution other than 5f electrons to the bulk magnetization of URu2Si2.

Original languageEnglish
Pages (from-to)581-582
Number of pages2
JournalPhysica B: Condensed Matter
Issue numberSPEC. ISS.
Publication statusPublished - 2006 May 1


  • Magnetic form factor
  • Polarized neutrons
  • URuSi

ASJC Scopus subject areas

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


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