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arXiv · 1103.1798

Reversible Transition Between Thermodynamically Stable Phases with Low Density of Oxygen Vacancies on SrTiO$_3$(110) Surface

Fengmiao Li·Zhiming Wang·Sheng Meng·Yongbao Sun·Jinlong Yang·Qinlin Guo·Jiandong Guo
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Abstract

The surface reconstruction of SrTiO$_3$(110) is studied with scanning tunneling microscopy and density functional theory (DFT) calculations. The reversible phase transition between (4$\times$1) and (5$\times$1) is controlled by adjusting the surface metal concentration [Sr] or [Ti]. Resolving the atomic structures of the surface, DFT calculations verify that the phase stability changes upon the chemical potential of Sr or Ti. Particularly, the density of oxygen vacancies is low on the thermodynamically stabilized SrTiO$_3$(110) surface.

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Fengmiao Li, Zhiming Wang, Sheng Meng, Yongbao Sun, Jinlong Yang, Qinlin Guo, Jiandong Guo. 2011-06-25. Reversible Transition Between Thermodynamically Stable Phases with Low Density of Oxygen Vacancies on SrTiO$_3$(110) Surface. https://doi.org/10.1103/physrevlett.107.036103

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