Submillimeter wave ESR of an S = 1 bond alternating chain Ni2(μ-C2O4)(μ-N3)(dPt) 2(PF6)

S. Kimura, S. Hayashi, H. Ohta, H. Kikuchi, H. Nagasawa, N. Nojiri, M. Motokawa

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Submillimeter wave ESR and magnetization measurements of Ni2(μ-C2O4)(μ-N3)(dpt) 2(PF6) have been performed. This compound is one of the model substances of an S = 1 antiferromagnetic chain with bond alternation. In the magnetization measurements, a step-like magnetization process has been observed at 4.2 K. The energy gap and the single-ion anisotropy are discussed from the magnetization using the S = 1 spin dimer model. In the submillimeter wave ESR measurement, several absorption lines appeared as the temperature is increased from 4.2 K. However, such absorption lines can not be explained by the simple dimer model. The excitation gap is also discussed from the temperature dependence of the integrated intensity.

Original languageEnglish
Pages (from-to)565-568
Number of pages4
JournalPhysica B: Condensed Matter
Volume246-247
DOIs
Publication statusPublished - 1998 May 29
Externally publishedYes

Keywords

  • Antiferromagnetism
  • ESR measurement
  • High magnetic field
  • Ni(μ-CO)(μ-n)-(dpt) (PF)
  • Submillimeter wave

ASJC Scopus subject areas

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

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