TY - JOUR
T1 - New S = 1/2 alternating chain compound - High pressure form of (VO)2P2O7-
AU - Azuma, M.
AU - Saito, T.
AU - Hiroi, Z.
AU - Takano, M.
AU - Narumi, Y.
AU - Kindo, K.
PY - 2000/1
Y1 - 2000/1
N2 - 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.
AB - 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.
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U2 - 10.12693/APhysPolA.97.205
DO - 10.12693/APhysPolA.97.205
M3 - Conference article
AN - SCOPUS:0042725966
SN - 0587-4246
VL - 97
SP - 205
EP - 208
JO - Acta Physica Polonica A
JF - Acta Physica Polonica A
IS - 1
T2 - The European Conference: Physics of Magnetism '99
Y2 - 21 June 1999 through 25 June 1999
ER -