| 发光隧道结表面粗糙度的隧道显微镜研究 |
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| 引用本文： | 江孟蜀 舒启清. 发光隧道结表面粗糙度的隧道显微镜研究[J]. 光学学报, 1992, 12(1): 8-82 |
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| 作者姓名： | 江孟蜀 舒启清 |
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| 作者单位： | 渝州大学物理系 重庆630033(江孟蜀)，重庆大学应用物理系 重庆630044(舒启清) |
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| 基金项目： | 国家自然科学基金会的资助 |
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| 摘 要： | 本文报道用扫描隧道显微镜(STM)在空气中观测淀积在100nm厚的CaF_2薄膜上的Al-Al_2O_3-Au发光隧道结表面的研究成果.在观测中首次发现结表面呈现出横向相关长度分别为30～70nm和3～5nm的两种粗糙度;横向相关长度小的粗糙度被横向相关长度大的所调制.这种横向相关长度为3～5nm的表面粗糙度的存在与Laks和Mills预期的表面随机粗糙隧道结发光理论值一致.
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| 关 键 词： | 发光 隧道结 表面粗糙度 SPP STM |
| 收稿时间： | 1990-06-25 |
Surface roughness study of light-emitting tunnel junction with scanning tunnelling microscope |
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| JIANG MENGSHU. Surface roughness study of light-emitting tunnel junction with scanning tunnelling microscope[J]. Acta Optica Sinica, 1992, 12(1): 8-82 |
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| Authors: | JIANG MENGSHU |
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| Abstract: | We report a study of the surface of Al-Al2O3-Au light-emitting junctions deposited on CaF2 underlayers of 100 nm thickness with scanning tunnelling micos-copy (STM) in air. For the first time, two kinds of the noughness on the junction surface are obserned, which have the transverse correlation length of 30-70nm and 3-5nm, respectively. The smaller one is modulated by the larger one. The existanoe of this surface roughness with the transverse correlation length of 3-5 nm is in agreement with the theoretical predication of Lake and Mills[2], |
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| Keywords: | Light-emitting tunnel junction surface plasmon-polarition surface noughness. |
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