High field magnetization in an S = 1 antiferromagnetic chain with bond alternation

Y. Narumi, M. Hagiwara, R. Sato, K. Kindo, H. Nakano, M. Takahashi

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108 Citations (Scopus)

Abstract

High field magnetization and susceptibility measurements have been performed on an S = 1 antiferromagnetic chain compound with bond alternation: [Ni2(Medpt)2(μ-ox)(μ-N3)]ClO4 · 0.5 H2O (Medpt = methyl-bis(3-aminopropyl)amine). When the magnetic field is applied along the chain direction, no magnetization is observed in the low field region. Then, the magnetization curve rises at about 17 T and increases almost linearly up to about 43 T to reach a plateau which corresponds to half of the saturated moment, and shows a steep increase again at about 55 T. The alternating ratio a is estimated to be ∼ 0.3 by comparing the experimental results with the calculations for the magnetization and susceptibility. Accordingly, the ground state of this compound is in the singlet-dimer phase.

Original languageEnglish
Pages (from-to)509-512
Number of pages4
JournalPhysica B: Condensed Matter
Volume246-247
DOIs
Publication statusPublished - 1998 May 29

Keywords

  • Bond alternation
  • Haldane phase
  • High field magnetization
  • Singlet-dimer phase

ASJC Scopus subject areas

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

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    Narumi, Y., Hagiwara, M., Sato, R., Kindo, K., Nakano, H., & Takahashi, M. (1998). High field magnetization in an S = 1 antiferromagnetic chain with bond alternation. Physica B: Condensed Matter, 246-247, 509-512. https://doi.org/10.1016/S0921-4526(97)00974-5