论文标题
多组分钙钛矿氧化物的2D表面相图：la $ _ {0.8} $ sr $ _ {0.2} $ mno $ _3 $（110）
2D Surface Phase Diagram of a Multicomponent Perovskite Oxide: La$_{0.8}$Sr$_{0.2}$MnO$_3$(110)
论文作者
论文摘要
（110）面向灯笼 - 木锰矿（la $ _ {0.8} $ sr $ _ {0.2} $ mno $ _3 $，lsmo）的许多表面重建。减少$μ__\ text {o} $使MN在整个表面上迁移，将相分开为富含A位的区域，并导致各种与组成相关的，结构上多样的B-Site富含B-Site的重建。通过扫描隧道显微镜（STM）量化了这些相分离结构的组成，这些结果用于构建LSMO（110）平衡表面结构的2D相图。
The many surface reconstructions of (110)-oriented lanthanum--strontium manganite (La$_{0.8}$Sr$_{0.2}$MnO$_3$, LSMO) were followed as a function of the oxygen chemical potential ($μ_\text{O}$) and the surface cation composition. Decreasing $μ_\text{O}$ causes Mn to migrate across the surface, enforcing phase separation into A-site-rich areas and a variety of composition-related, structurally diverse B-site-rich reconstructions. The composition of these phase-separated structures was quantified with scanning tunneling microscopy (STM), and these results were used to build a 2D phase diagram of the LSMO(110) equilibrium surface structures.
