REFLECTION HIGH-ENERGY ELECTRON-DIFFRACTION STUDY ON THE SRTIO3 SURFACE-STRUCTURE
REFLECTION HIGH-ENERGY ELECTRON-DIFFRACTION STUDY ON THE SRTIO3 SURFACE-STRUCTURE
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DOI：
10.1016/0921-4534(94)90805-2
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发表时间：
1994-08-01
影响因子：
1.7
通讯作者：
SATO, H
中科院分区：
文献类型：
--
作者：
NAITO, M;SATO, H
采用反射高能电子衍射法研究了不同表面处理条件下SrTiO3（001）和（110）晶面的表面结构。抛光后的表面在（001）和（110）晶面上都具有（1 X 1）未重构结构。真空退火表面在（001）面上具有两畴（2 X 1）上层结构，在（110）面上具有（4 X 4）结构。氧退火表面在（001）表面有两个上层结构：两畴（平方根13 X平方根13- r33.7度）结构和c（6 × 2）结构，（110）表面有（4 × 2）或（4 × 4）结构。在这些表面中，氧退火表面具有最高的质量。
This paper reports a reflection high-energy electron diffraction investigation of the surface structures of the (001) and (110) crystal faces of SrTiO3 given various surface treatments. The as-polished surface has a (1 X 1) unreconstructed structure on both the (001) and (110) crystal faces. The vacuum annealed surface has a two-domain (2 X 1) superstructure on the (001) face and a (4 X 4) structure on the (110) face. The oxygen annealed surface has two superstructures on the (001) face: a two-domain (square-root 13 X square-root 13-R33.7-degrees) structure and a c(6 X 2) structure, and a (4 X 2) or a (4 X 4) structure on the (110) face. Of these surfaces, the oxygen annealed surface has the highest quality.