Abstract
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 language | English |
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Pages (from-to) | 205-208 |
Number of pages | 4 |
Journal | Acta Physica Polonica A |
Volume | 97 |
Issue number | 1 |
DOIs | |
Publication status | Published - 2000 Jan |
Externally published | Yes |
Event | The European Conference: Physics of Magnetism '99 - Poznan, Poland Duration: 1999 Jun 21 → 1999 Jun 25 |
ASJC Scopus subject areas
- Physics and Astronomy(all)