Pressure effect on Haldane gap system

M. Yamashita, H. Shimizu, K. Sakoyama, T. Manabe, T. Otsuka, K. Awaga

Research output: Contribution to journalConference articlepeer-review

9 Citations (Scopus)


The [Ni(dmpn)2N3]ClO4 (dmpn=2,2-dimethyl-1,3-propylenediamine) is a Haldane gap compound with Eg=21.6 K and J=-70.6 K. The pressure effect on the magnetic susceptibilities has revealed that with increase of the pressure the absolute J values increase. This is due to the increase of the orbital overlapping between the Ni2+ ions and the N atoms of bridging azido-ligands.

Original languageEnglish
Pages (from-to)2162-2163
Number of pages2
JournalSynthetic Metals
Issue number1-3
Publication statusPublished - 1999 Jun 24
Externally publishedYes
EventProceedings of the 1998 International Conference on Science and Technology of Synthetic Metals (ICSM-98) - Montpellier
Duration: 1998 Jul 121998 Jul 18

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry


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