| nm Al粒子的电磁波吸收和金属-绝缘体相变 |
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| 引用本文： | 徐则川,罗永祥,林更琪,李佐宜.nm Al粒子的电磁波吸收和金属-绝缘体相变[J].华中科技大学学报(自然科学版),1997(4). |
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| 作者姓名： | 徐则川 罗永祥 林更琪 李佐宜 |
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| 作者单位： | 华中理工大学固体电子学系 |
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| 基金项目： | 国家高技术研究发展计划资助 |
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| 摘 要： | ｎｍＡｌ粒子在一定的粒径范围内（１０－１７ｎｍ）对电磁波有较强的吸收能力，其吸收率“ａ≈０．４．在这个粒径范围内，Ａ１粒子既不具有完全的金属性，也不具有完全的绝缘性，ｎｍＡｌ粒子的金属·绝缘体相变市是一个突变过程，存在“过渡区”．在过渡区中Ａ１粒子对电磁波的吸收来源于量子尺寸效应。
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| 关 键 词： | nmAl粒子，电磁波吸收，金属－绝缘体相变，过渡区，量子尺寸效应 |
The EM Wave Absorption and Metal-Insulator Transition of A1 Particles of the Nanometer Level |
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| Xu . Zecheuan Luo Yongxiang Lin Gengqi Li Zuoyi..The EM Wave Absorption and Metal-Insulator Transition of A1 Particles of the Nanometer Level[J].JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY.NATURE SCIENCE,1997(4). |
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| Authors: | Xu Zecheuan Luo Yongxiang Lin Gengqi Li Zuoyi |
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| Abstract: | Within a certain Al particle size range (10-17 nm) , the EM wave absorption by the parti- cles is very strong. The absorbance a is roughly equal to 0. 4. In this size range , the Al particles are neither metals nor insulators. The metal-insulator transition of Al particles is not abrupt. There is a transition region , in which the EM wave absorption of Al particles is due to the quantum size eff .ct. |
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| Keywords: | Al particles of the nanometer level : EM wave absorption : metal-insulator transition : transition region : quantum size effect |
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