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Metamagnetism in La2CuO4


A careful study of the metamagnetic transition in single-crystalline La2CuO4 is presented. From magnetic susceptibility measurements the critical exponent () of the weak ferromagnetic state, which terminates at a triple point, has been estimated to be =0.50.02, a value consistent with mean-field theory. Furthermore, the pressure dependence of the critical magnetic field for the transition has been examined from magnetoresistance measurements under hydrostatic pressure. © 1989 The American Physical Society.

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