A-site ordered quadruple perovskite oxides
Long Youwen1, 2, †,
       

Temperature dependence of (a) dielectric constant ε and magnetic susceptibility χ, (b) pyroelectric current Ip and (c) ferroelectric polarization P in both+ poled and –poled conditions. The ε and Ip were measured without magnetic field. Insets of panels (b) and (c) show enlarged views near 50 K.[36]