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Quasi-one-dimensional antiferromagnet LiCuVO4
Authors:A N Vasil’ev
Institution:(1) M. V. Lomonosov Moscow State University, 119899 Moscow, Russia
Abstract:An antiferromagnetic transition is observed in the quasi-one-dimensional metal-oxide compound LiCuVO4. A wide peak is observed in the temperature dependence of the magnetic susceptibility at T M =28 K, and the magnetic susceptibility exhibits a sharp drop at T N ≈4 K. As the magnetic field increases, the antiferromagnetic-ordering temperature T N =2.3 K at first increases somewhat and then decreases rapidly. The exchange interaction in the chains of copper-oxygen octahedra is estimated to be J 1=22.5 K. The interchain interaction is estimated to be J 2∼1 K. Pis’ma Zh. éksp. Teor. Fiz. 69, No. 11, 828–831 (10 June 1999)
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