论文标题
洛杉矶的组合光谱和电气表征：basno $ _ \ text {3} $薄膜和异质结构
Combined Spectroscopy and Electrical Characterization of La:BaSnO$_\text{3}$ Thin Films and Heterostructures
论文作者
论文摘要
对于掺杂的basno $ _ \ text {3} $由脉冲激光沉积生长的薄膜，我们结合了化学表面表征和电子传输研究，以探测带有不同掺杂含量的频带结构中电子状态的演变。基于拟合核心电子线形状的光谱数据的系统分析有助于揭示表面的组成以及与增加掺杂相关的动力学。在SN 3D核心水平上观察到了这种动力学，其签名更为明显，这表现出对峰的高结合能侧的不对称性，而电子密度的增加。目前的结果扩展了当前对掺杂浓度，电子带结构和外在la的传输特性之间相互作用的理解：basno $ _ \ text {3} $胶片。
For La-doped BaSnO$_\text{3}$ thin films grown by pulsed laser deposition, we combine chemical surface characterization and electronic transport studies to probe the evolution of electronic states in the band structure for different La-doping content. Systematic analyses of spectroscopic data based on fitting the core electron line shapes help to unravel the composition of the surface as well as the dynamics associated with increasing doping. This dynamics is observed with a more pronounced signature in the Sn 3d core level, which exhibits an increasing asymmetry to the high binding energy side of the peak with increasing electron density. The present results expand the current understanding of the interplay between the doping concentration, electronic band structure and transport properties of epitaxial La:BaSnO$_\text{3}$ films.
