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Metamagnetism in La2CuO4
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https://doi.org/10.1103/physrevb.39.4395Abstract
A careful study of the metamagnetic transition in single-crystalline La2CuO4 is presented. From magnetic susceptibility measurements the critical exponent (β) of the weak ferromagnetic state, which terminates at a triple point, has been estimated to be β=0.5±0.02, 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.
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