Quantum phase transition in field-induced ordering phases of anisotropic Haldane systems

Hiroshi Miyazaki, Tomohiko Hiwasa, Masataka Oko, Isao Harada

Research output: Contribution to journalArticlepeer-review


Being motivated by the novel phase transition found in the Haldane compound, Ni (C5 H14 N2)2 N3 (PF6), we have investigated the field-induced quantum phase transitions in the anisotropic S = 1 Haldane system by means of the density matrix renormalization group method. With increasing magnetic fields, in addition to the Haldane to ordered phase transition, the spin-reorientation transition between the ordered phases is predicted to occur in the case where the magnetic field is inclined from the principal axes of the anisotropy. Physical consequences of this transition are discussed in connection with the experimental result.

Original languageEnglish
Pages (from-to)1227-1228
Number of pages2
JournalJournal of Magnetism and Magnetic Materials
Issue number2 SUPPL. PART 2
Publication statusPublished - Mar 2007
Externally publishedYes


  • Field-induced phase transition
  • Spin-reorientation

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics


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