论文标题
伪立方（111）面向钙钛矿氧化物薄膜合成的影响（111）的影响
Effect of pseudo-cubic (111)-oriented orthorhombic substrate facets on perovskite oxide thin film synthesis
论文作者
论文摘要
具有不同底物方面的应变工程有望在调整薄膜钙钛矿氧化物的功能特性。通过选择刻面，可以定制外延界面的不同表面对称性和化学键方向。在这里，据报道，据报道，据报道，定义明确定义的伪立方（111）面向Dysco3，GDSCO3和NDGAO3的面向面向的正交底物。正骨晶面的选择，（011）o或（101）o，都对应于伪立方体（111）pc，给出具有单个或双倍或双倍（111pc layer Terace台阶高度）的阴道表面，从而影响了随后的薄膜生长。正常的lafeo3 exterers the layer the layer the the the layer the the the the the the the layer the pc stret pc nive（101）exts a extion（101 o）a a in action（101 o）（101）o（101 o）（101 o）a a a a f action（101 o）（101）在生长后，观察到的差异是基于氧气八人体倾斜模式相对于两个正交（111）PC表面的。
Strain engineering with different substrate facets is promising for tuning functional properties of thin film perovskite oxides. By choice of facet, different surface symmetries and chemical bond directions for epitaxial interfaces can be tailored. Here, preparation of well-defined pseudo-cubic (111)-oriented orthorhombic substrates of DyScO3 , GdScO3 , and NdGaO3 is reported. The choice of orthorhombic facet, (011)o or (101)o , both corresponding to pseudo-cubic (111)pc , gives vicinal surfaces with single or double (111pc layer terrace step heights, respectively, impacting subsequent thin film growth. Orthorhombic LaFeO3 epitaxy on the (101)o facet reveals a distinction between alternating (111)pc layers, both during and after growth. The observed differences are explained based on the oxygen octahedral tilt pattern relative to the two orthorhombic (111)pc surfaces. This robust structural detail in the orthorhombic perovskite oxides enables utilisation of different (111)pc facets for property engineering, through polyhedral connectivity control and cation coordination at epitaxial interfaces.
