| Monte Carlo Investigation of Adsorption Stage of O on Ru（0001）：a Study of a Lattice Model |
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| 摘 要： |
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| 关 键 词： | 相变 Ru（0001）表面吸附 蒙特卡络模拟 |
| 收稿时间： | 1999-11-16 |
Monte Carlo Investigation of Adsorption Stage of O
on Ru(0001): a Study of a Lattice Model |
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| Authors: | XIONG Guo-Ming and LI Xia |
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| Institution: | Department of Applied Physics, Sichuan University (west
area), Chengdu 610065, China |
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| Abstract: | The adsorption of O on Ru(0001) is studied by means of Monte Carlo
simulation of lattice gas model on a triangular lattice. A recent STM
study shows that at low coverage the p(2×2) structure grows via island formation but the p(2×1) structure is abruptly formed at a critical coverage. Moreover, it also shows that there is a coexistence of the p(2×2) and p(2×1) structures. The above results seem not to coincide with the former studies of the system by both the LEED and Monte Carlo simulation. We therefore carried out the Monte Carlo study for the system again in the present paper and found that our simulation almost agrees with the results of the STM. |
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| Keywords: | absorption on surface phase diagram phase transition Monte Carlo simulation |
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