论文标题

草图Laalo3/srtio3纳米线的域墙性质

Domain wall nature of sketched LaAlO3/SrTiO3 nanowires

论文作者

Qiu, Dawei, Ha, Mengke, Xiao, Qing, Qin, Zhiyuan, Liu, Danqing, Ma, Changjian, Cheng, Guanglei, Du, Jiangfeng

论文摘要

Laalo3/srtio3界面在Laalo3/srtio3界面上通过导电原子力显微镜尖端勾勒出的可重新配置设备中丰富的电子相关性和高度相干的传输已使氧化物平台成为研究相关电子和量子技术应用的理想游乐场。但是,为什么这些一维设备在二维界面上具有增强的性能,但仍然难以捉摸。在这里,我们提供了证据表明,通过热力学研究本质上,一维Laalo3/srtio3纳米线本质上是本质上是铁弹性结构域壁。我们已经观察到在热刺和温度周期下的耐药性异常,具有匹配域壁极性的特征温度。该信息对于理解新现象至关重要,包括超导性和高迁移率量子运输。

The rich electron correlations and highly coherent transport in reconfigurable devices sketched by a conductive atomic force microscope tip at the LaAlO3/SrTiO3 interface have enabled the oxide platform an ideal playground for studying correlated electrons and quantum technological applications. Why these one-dimensional devices possess enhanced properties over the two-dimensional interface, however, has remained elusive. Here we provide evidence that one-dimensional LaAlO3/SrTiO3 nanowires are intrinsically ferroelastic domain walls by nature through thermodynamic study. We have observed spreading resistance anomalies under thermo-stimulus and temperature cycles, with characteristic temperatures matching domain wall polarity. This information is crucial in understanding the novel phenomena including superconductivity and high mobility quantum transport.

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