<italic>A</italic>-site ordered quadruple perovskite oxides <inline-formula id="cpb151912ieqn1"><inline-graphic xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="cpb151912ieqn1.gif"/></inline-formula>

A-site ordered quadruple perovskite oxides

Long Youwen^{1, 2, †,}

Temperature dependence (a) lengths of Cu–O and Fe–O bonds and (b) calculated BVS values for Cu and Fe ions in LaCu₃Fe₄O₁₂.^[30]