New S = 1/2 alternating chain compound - High pressure form of (VO)2P2O7-

M. Azuma, T. Saito, Z. Hiroi, M. Takano, Y. Narumi, K. Kindo

Research output: Contribution to journalConference articlepeer-review


The high-pressure phase of (VO)2P2O7 comprises a unique kind of spin-1/2 Heisenberg alternating antiferromagnetic chain, in contrast with the ambient pressure phase containing two crystallographically different chains. Magnetic susceptibility and high-field magnetization data showed the presence of a single spin gap of 23 (magnetization) ∼ 27 (susceptibility) K, not double as observed for the ambient pressure phase. This result shows that the two kinds of chains of the ambient pressure phase have single, different spin gaps.

Original languageEnglish
Pages (from-to)205-208
Number of pages4
JournalActa Physica Polonica A
Issue number1
Publication statusPublished - 2000 Jan
Externally publishedYes
EventThe European Conference: Physics of Magnetism '99 - Poznan, Poland
Duration: 1999 Jun 211999 Jun 25

ASJC Scopus subject areas

  • Physics and Astronomy(all)


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