Evolution of the Surface Structures on SrTiO$_3$(110) Tuned by Ti or Sr Concentration

Zhiming Wang; Fang Yang; Zhiqiang Zhang; Yuanyuan Tang; Jiagui Feng; Kehui Wu; Qinlin Guo; Jiandong Guo

doi:10.1103/PhysRevB.83.155453

Evolution of the Surface Structures on SrTiO$_3$(110) Tuned by Ti or Sr Concentration

Materials Science 2015-05-20 v1

Authors: Zhiming Wang , Fang Yang , Zhiqiang Zhang , Yuanyuan Tang , Jiagui Feng , Kehui Wu , Qinlin Guo , Jiandong Guo

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Abstract

The surface structure of the SrTiO $_3$ (110) polar surface is studied by scanning tunneling microscopy and X-ray photoelectron spectroscopy. Monophased reconstructions in (5 $\times$ 1), (4 $\times$ 1), (2 $\times$ 8), and (6 $\times$ 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 surface metal concentration. The different electronic structures and absorption behaviors of the surface with different reconstructions are investigated.

Keywords

surface science ferroelectric phase transitions

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@article{arxiv.1012.1941,
  title  = {Evolution of the Surface Structures on SrTiO$_3$(110) Tuned by Ti or Sr Concentration},
  author = {Zhiming Wang and Fang Yang and Zhiqiang Zhang and Yuanyuan Tang and Jiagui Feng and Kehui Wu and Qinlin Guo and Jiandong Guo},
  journal= {arXiv preprint arXiv:1012.1941},
  year   = {2015}
}

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10 pages, 14 figures

Evolution of the Surface Structures on SrTiO$_3$(110) Tuned by Ti or Sr Concentration

Abstract

Keywords

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