Physics – Condensed Matter – Materials Science
Scientific paper
2010-12-09
Physics
Condensed Matter
Materials Science
10 pages, 14 figures
Scientific paper
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.
Feng Jiagui
Guo Jiandong
Guo Qinlin
Tang Yuanyuan
Wang Zhiming
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