Growth of high quality Sr<sub>2</sub>IrO<sub>4</sub> epitaxial thin films on conductive substrates

Growth of high quality Sr₂IrO₄ epitaxial thin films on conductive substrates

Xu Hui¹, Cui Zhangzhang^{1, 2}, Zhai Xiaofang^{1, 3, †}, Lu Yalin^{1, 2, 4, ‡}

(a) XRD patterns of Sr₂IrO₄ samples grown on different substrates. (b)–(e) RHEED intensity oscillations for Sr₂IrO₄ films grown under optimization condition on (b) (001)-oriented SrTiO₃ substrate without buffer layer, (c) SrTiO₃ substrates with titanium and gold sequentially sputtered on the back of the substrates, (d) SrTiO₃ substrate with buffer layer LaNiO₃, (e) SrTiO₃:Nb substrate.