TY - JOUR
T1 - High-field magnetization measurements on single crystals of (VO)2P2O7
AU - Narumi, Y.
AU - Kimura, S.
AU - Hirai, S.
AU - Kindo, K.
AU - Schwenk, H.
AU - Schmidt, S.
AU - Wolf, B.
AU - Lüthi, B.
AU - Saito, T.
AU - Azuma, M.
AU - Takano, M.
N1 - Funding Information:
This work is partly supported by Grant-in Aid for Scientific Research of Ministry of Education, Sports and Culture.
PY - 2001/1
Y1 - 2001/1
N2 - High-field magnetization measurements have been performed on single crystals of ambient pressure (AP) and high-pressure (HP) phases of (VO)2P2O7 (VOPO). In the measurement of AP-VOPO, we observed magnetization rises with the curvatures changing at two critical fields. On the other hand, a single sharp increase was observed in the magnetization curve of HP-VOPO. These behaviors revealed that AP-VOPO and HP-VOPO consist of two kinds of gapped chains and a single gapped chain, respectively. From convex behaviors in these magnetization m, we estimated the critical exponent δ = 4/3 defined as m ∝(H-Hc)1/δ for the S = 1/2 gapped system.
AB - High-field magnetization measurements have been performed on single crystals of ambient pressure (AP) and high-pressure (HP) phases of (VO)2P2O7 (VOPO). In the measurement of AP-VOPO, we observed magnetization rises with the curvatures changing at two critical fields. On the other hand, a single sharp increase was observed in the magnetization curve of HP-VOPO. These behaviors revealed that AP-VOPO and HP-VOPO consist of two kinds of gapped chains and a single gapped chain, respectively. From convex behaviors in these magnetization m, we estimated the critical exponent δ = 4/3 defined as m ∝(H-Hc)1/δ for the S = 1/2 gapped system.
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U2 - 10.1016/S0921-4526(00)00611-6
DO - 10.1016/S0921-4526(00)00611-6
M3 - Article
AN - SCOPUS:0035062199
SN - 0921-4526
VL - 294-295
SP - 71
EP - 74
JO - Physica B: Condensed Matter
JF - Physica B: Condensed Matter
ER -