Quasi-one-dimensional antiferromagnet LiCuVO4

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)(')approximate to 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)similar to 1 K. (C) 1999 American Institute of Physics. [S0021-3640(99)01111-1].