Epitaxial growth and antiferromagnetism of Sn-substituted perovskite iridate SrIr0.8Sn0.2O3
Epitaxial growth and antiferromagnetism of Sn-substituted perovskite iridate SrIr0.8Sn0.2O3
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DOI：
10.1103/physrevmaterials.3.124411
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发表时间：
2019-12
期刊：
影响因子：
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通讯作者：
Junyi Yang;L. Hao;Q. Cui;Jiaqi Lin;L. Horák;Xuerong Liu;Lu Zhang;Huaixin Yang;J. Karapetrova;Jong-Woo Kim;P. Ryan;M. Dean;Jinguang Cheng;Jian Liu
中科院分区：
文献类型：
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作者：
Junyi Yang;L. Hao;Q. Cui;Jiaqi Lin;L. Horák;Xuerong Liu;Lu Zhang;Huaixin Yang;J. Karapetrova;Jong-Woo Kim;P. Ryan;M. Dean;Jinguang Cheng;Jian Liu
5d iridates have shown vast emergent phenomena due to a strong interplay among its lattice, charge and spin degrees of freedom, because of which the potential in spintronic application of the thin-film form is highly leveraged. Here we have epitaxially stabilized perovskite SrIr$_{0.8}$Sn$_{0.2}$O$_3$ on [001] SrTiO$_3$ substrates through pulsed laser deposition and systematically characterized the structural, electronic and magnetic properties. Physical properties measurements unravel an insulating ground state with a weak ferromagnetism in the compressively strained epitaxial film. The octahedral rotation pattern is identified by synchrotron x-ray diffraction, resolving a mix of $a^+b^-c^-$ and $a^-b^+c^-$ domains. X-ray magnetic resonant scattering directly demonstrates a G-type antiferromagnetic structure of the magnetic order and the spin canting nature of the weak ferromagnetism.
