| Kondo effect in quantum dots and molecular devices |
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| 作者姓名： | JIANG Lang LI Hongxiang HU Wenping ZHU Daoben |
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| 作者单位： | Institute of Chemistry,Chinese Academy of Sciences,Beijing 100080,China |
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| 基金项目： | This work was supported by the Chinese Academy of Sciences, National Natural Science Foundation of China （Grant Nos. 20421101, 20402015 ＆ 20404013） and Ministry of Science and Technology of China. |
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| 摘 要： | Kondo effect is a very important many-body phenomenon in condensed mailer physics, which explains why the resistance increases as the temperature is lowered （usually 〈10 K） in dilute magnetic alloy, and why the conductance increases as temperature is decreased in quantum dots. This paper simply introduces equilihrium and nonequilibrium Kondo effects in quantum dots together with the Kondo effect in quantum dots with even number of electrons （when the singlet and triplet states are degenerate）. Furthermore, Kondn effect in single aton/molecular transistorss is introduced, which indicates a new way in study Kondo effect.
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| 关 键 词： | Kondo效应 量子点 Kondo温度 分子设备 磁性合金 |
| 收稿时间： | 2004-09-10 |
| 修稿时间： | 2004-09-102005-05-20 |
Kondo effect in quantum dots and molecular devices |
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| JIANG Lang LI Hongxiang HU Wenping ZHU Daoben.Kondo effect in quantum dots and molecular devices[J].Chinese Science Bulletin,2005,50(19):2132-2139. |
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| Authors: | Lang Jiang Hongxiang Li Wenping Hu Daoben Zhu |
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| Institution: | 1. Institute of Chemistry, Chinese Academy of Sciences, 100080, Beijing, China
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| Abstract: | Kondo effect is a very important many-body phenomenon in condensed matter physics,which explains why the resistance increases as the temperature is lowered (usually <10 K) in dilute magnetic alloy, and why the con-ductance increases as temperature is decreased in quantum dots. This paper simply introduces equilibrium and non- equilibrium Kondo effects in quantum dots together with the Kondo effect in quantum dots with even number of electrons (when the singlet and triplet states are degenerate). Fur-thermore, Kondo effect in single atom/molecular transistors is introduced, which indicates a new way to study Kondo effect. |
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| Keywords: | Kondo effect Kondo temperature quantum dots molecular devices |
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