Magnetic properties of the coupled ladder system MgV2O5

被引:40
作者
Millet, P
Satto, C
Bonvoisin, J
Normand, B
Penc, K
Albrecht, M
Mila, F
机构
[1] CNRS, CEMES, F-31055 Toulouse, France
[2] ETH Honggerberg, CH-8093 Zurich, Switzerland
[3] Max Planck Inst Phys Komplexer Syst, D-01187 Dresden, Germany
[4] Univ Toulouse 3, Phys Quant Lab, F-31062 Toulouse, France
关键词
D O I
10.1103/PhysRevB.57.5005
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
We present magnetic-susceptibility measurements on MgV2O5, a compound in which the vanadium oxide planes have the same topology as in CaV2O5. The most striking property is that there is an energy gap of about 15 K, much smaller than in CaV2O5, where the values reported are of the order of 500 K. We show that this may be understood naturally in terms of the phase diagram of the frustrated coupled ladder system. This analysis leads to the prediction that MgV2O5 should have incommensurate dynamic spin fluctuations.
引用
收藏
页码:5005 / 5008
页数:4
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