Evolution of the surface structures on SrTiO3(110) tuned by Ti or Sr concentration

被引：51

作者：

Wang, Zhiming ^{[1
]}

Yang, Fang

Zhang, Zhiqiang

Tang, Yuanyuan

Feng, Jiagui

Wu, Kehui

Guo, Qinlin

Guo, Jiandong

机构：

[1] Chinese Acad Sci, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China

来源：

PHYSICAL REVIEW B | 2011年 / 83卷 / 15期

关键词：

SCANNING-TUNNELING-MICROSCOPY; STRONTIUM-TITANATE; PHOTOELECTRON-SPECTROSCOPY; SRTIO3(001); RECONSTRUCTIONS; SUPERLATTICES; POLARIZATION; TEMPERATURES; OXIDES;

D O I：

10.1103/PhysRevB.83.155453

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The surface structure of the SrTiO3(110) polar surface is studied by scanning tunneling microscopy and x-ray photoelectron spectroscopy. Monophased reconstructions in (5 x 1), (4 x 1), (2 x 8), and (6 x 8) are obtained, respectively, and the evolution between these phases can be tuned reversibly by adjusting the Ar+ sputtering dose or the amount of Sr/Ti evaporation. Upon annealing, the surface reaches the thermodynamic equilibrium that is determined by the metal concentration. The different electronic structures and absorption behaviors of the surface with different reconstructions are investigated.

引用

页数：9

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