Metamagnetism in La2CuO4.
Published Web Locationhttps://doi.org/10.1103/physrevb.39.4395
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.