摘要
<正>准一维反铁磁材料由于其自身的量子磁效应近年来引起了很多科学家的研究兴趣。含有螺旋链结构的AM2V2O8(A=Ba、Sr、Pb,M=Cu、Co、Ni)体系材料被发现是很好的准一维材料[1,2,3,4]。尤其是BaCo2V2O8样品,人们观测到外加磁场引发的T-L液体的量子相变[5,6,7]。
引文
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[3]He Z,Taniyama T and Itoh M,等.Crystal growth and magnetic properties of Sr Co2V2O8.J.Cryst.Growth 2006 293 458.
[4]He Z,Ueda Y and Itoh M,等.Synthesis,structure and magnetic properties of new vanadate Pb Co2V2O8.J.Solid State Chem.2007 180 1770.
[5]Kimura S,Takeuchi T,Okunishi K,等.Novel Ordering of an S=1/2 Quasi-1d Ising-Like Antiferromagnet in Magnetic Field.Phys.Rev.Lett.,2008,100,057202.
[6]Okunishi K and Suzuki T,等.Field-induced incommensurate order for the quasi-one-dimensional XXZ model in a magnetic field.Phys.Rev.B 2007,76,224411.
[7]Kimura S,Matsuda M,Masuda T,等.Longitudinal Spin Density Wave Order in a Quasi-1D Ising-like Quantum Antiferromagnet.Phys.Rev.Lett.2008,101,207201.
[8]Kawasaki Y,Gavilano J L,Keller L,等.Magnetic structure and spin dynamics of the quasi-one-dimensional spin-chain antiferromagnet BaC o2V2O8.Phys.Rev.B 2011 83 064421