Multipolar ordering in PrB6

Tomoya Kuromaru, Hiroaki Kusunose, Yoshio Kuramoto

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)


We investigate the mechanism how the complex magnetic structure is stabilized in PrB6,paying attention to similarity to and difference from the case of OeB6. A Ginzburg-Landau-typexpansion of the free energy is obtained with account of the γ5-triplet crystalline electric field (CEF) ground state in PrB6- It is found in the γ5 model that combination of the nearest- neighbor dipole interaction and the next-nearest neighbor pseudo-dipole-type one reproduces the successive magnetic transitions observed in PrB6: Incommensurate phase followed by a commensurate non-collinear structure with further decreasing of temperature. Inclusion of the quadrupolar interaction modifies the second-order transition to the IC phase into first order by enhancing the mode-coupling of dipole and quadrupole degrees of freedom.

Original languageEnglish
Pages (from-to)130-132
Number of pages3
Journaljournal of the physical society of japan
Issue numberSUPPL.
Publication statusPublished - 2002
Externally publishedYes


  • Ginzburg-Landau freeenergy
  • Multipole moment
  • PrB
  • Pseudo-dipole type interaction
  • The γ-subspace

ASJC Scopus subject areas

  • Physics and Astronomy(all)


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