(a) XRD 2θ-ω scans of single phase Sr2IrO4 and SrIrO3
We report on the selective fabrication of high-quality Sr2IrO4 and SrIrO3 epitaxial thin films from a single polycrystalline Sr2IrO4 target by pulsed laser deposition.
Substrate-tuning of correlated spin-orbit oxides revealed by …
2016年6月3日 · We have systematically investigated substrate-strain effects on the electronic structures of two representative Sr-iridates, a correlated-insulator Sr 2 IrO 4 and a metal SrIrO 3.
SrIrO3 modified with laminar Sr2IrO4 as a robust bifunctional ...
2021年9月1日 · All diffraction peaks in the XRD pattern (Fig. S2-3) were well-indexed to quasi-2D Sr 2 IrO 4 perovskite (JCPDS No. 09-0099) and 3D 6H-SrIrO 3 perovskite (JCPDS No. 25-0897), suggesting the combination of quasi-2D/3D Ir-based perovskites.
Phase relations in the system Sr–Ir–O and ... - ScienceDirect
1999年6月29日 · The formation of the ternary compounds was confirmed by XRD. Direct reaction of SrCO 3 and IrO 2 often produced non-equilibrium phase mixtures or metastable phases. Reacting SrCO 3 with Ir in pure oxygen gave results that are more consistent.
Observation of a d-wave gap in electron-doped Sr2IrO4 - Nature
2015年10月12日 · Using angle-resolved photoemission, we show that the clean, low-temperature phase of 6–8% electron-doped Sr 2 IrO 4 has gapless excitations only at four isolated points in the Brillouin zone, with...
Evolution of electronic and magnetic properties of Sr
2022年9月10日 · Motivated by properties-controlling potential of the strain, we investigate strain dependence of structure, electronic, and magnetic properties of Sr 2 IrO 4 using complementary theoretical tools:...
自旋-轨道耦合型莫特绝缘体Sr 2 IrO 4 的高压拉曼光谱
2019年12月5日 · 通常x射线衍射（xrd）是获得晶体结构的重要技术之一，但高压粉晶在开展衍射实验过程中受到诸多限制，如衍射峰数目有限、衍射峰强度易受较复杂背景的影响，所以对微小的结构变化（如八面体的旋转、倾斜或拉长、缩短）并不敏感。
强自旋轨道耦合化合物sr2iro4的制备与表征 - 道客巴巴
2015年3月13日 · 通过改变煅烧时间和煅烧温度探索了 Sr IrO4 化合物的最优制备工艺。 X RD 和 sEM 分析表明， 在最优制备工艺下得到具有结晶度高、 颗粒形状规则、 大小分布均匀的纯相 Sr2 Ir04样品。
过渡金属氧化物Sr2IrO4及掺杂的制备和电磁特性的研究-硕士-中文 …
本文以过渡金属氧化物Sr2IrO4为主要研究对象，因为这种材料的结构不但和K2NiO4 (La2CuO4)高度相似而且在电性和磁性方面有许多有趣的现象。 这里运用传统的固相合成法对样品进行了制备，通过X射线衍射、物理性质测量系统和磁学测量系统以及扫描电子显微镜等实验方法对多晶样品进行了表征和电磁性质的研究。 依据实验数据可以得到该材料的电阻随着温度的降低逐渐增大。 特别是当温度降于50K左右时，电阻急速上升。 这表明本该具有金属性的Sr2IrO4材料是具有 …
mp-10254: Sr2IrO4 (tetragonal, I4/mmm, 139) - Materials Project
Sr2IrO4 is (La,Ba)CuO4 structured and crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. Sr2+ is bonded in a 9-coordinate geometry to nine O2- atoms. There are a spread of Sr–O bond distances ranging from 2.44–2.80 Å. Ir4+ is bonded to six O2- atoms to form corner-sharing IrO6 octahedra.