| O在Pt/Si上的化学吸附对Pt/Si界面能的影响 |
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| 引用本文： | 徐国定,张涛. O在Pt/Si上的化学吸附对Pt/Si界面能的影响[J]. 河南师范大学学报(自然科学版), 1993, 0(2) |
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| 作者姓名： | 徐国定 张涛 |
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| 作者单位： | 河南师范大学物理系，洛阳师范专科学校物理系 |
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| 摘 要： | 本文在一维紧束缚近似下,利用格林函数方法和复能积分技术,研究了O在Pt/Si上的化学吸附对Pt/Si界面能的影响。分别以有限d轨道链模型和半无限的sp杂化轨道链模型来描述金属Pt和衬底Si,计算了O在吸附前后Pt/Si界面能随界面耦合强度γ的变化关系。结果表明O的吸附导致Pt/Si界面能降低。
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| 关 键 词： | 格林函数 紧束缚模型 界面能 |
The Effects of O Chemisorption on Pt/Si on the Pt/Si Interface Properties |
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| Xu Guoding,Zhang Tao. The Effects of O Chemisorption on Pt/Si on the Pt/Si Interface Properties[J]. Journal of Henan Normal University(Natural Science), 1993, 0(2) |
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| Authors: | Xu Guoding Zhang Tao |
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| Affiliation: | Xu Guoding;Zhang Tao Department of Physics |
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| Abstract: | The effects of O chemisorption on Pt/Si on the Pt/Si interface properties are investi-gated by using the Green's function method and the complex-energy-plane integration technique withinthe limits of the one-dimentsional tight-binding approximation.The metal Pt and substrate Si arerespectively described by the finite d-orbital chain and the semi-infinite sp-hybrid orbital chain.ThePt/Si interface energy are computed before and after O is adsorbed.The results show that the Pt/Si in-terface energy decreases after O is adsorbed. |
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| Keywords: | Green's function tight-binding model interface energy |
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