Theoretical study of the effect of the Coulomb blockade and Kondo resonance in the density of states using self-consistent field approximation |
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| Institution: | 1. Key Laboratory for Liquid–Solid Structural Evolution and Processing of Materials (Ministry of Education), Shandong University, Jinan 250061, China;2. Weihai Wanfeng Magnesium Industry Science and Technology Development Co. Ltd., Weihai 264209, China;3. School of Electrical Engineering, Shandong University, Jinan 250061, China;1. A.F.Ioffe Physical-Technical Institute of the Russian Academy of Sciences, St.Petersburg, 194021, Politechnicheskaya 26, Russia;2. Institute for Problems of Mechanical Engineering of the Russian Academy of Sciences, St. Petersburg 199178, Bolshoy Prospect V.O. 61, Russia;3. St. Petersburg State Polytechnical University, 195231, Politechnicheskaya 29, Russia;1. Institute of Physics, Carl von Ossietzky University of Oldenburg, D-26111 Oldenburg, Germany;2. Institute of Physics, University of Freiburg, D-79104 Freiburg, Germany;1. Institute of Theoretical Physics, Shanxi University, Taiyuan 030006, China;2. Institute of Solid State Physics and Department of Physics, Shanxi Datong University, Datong 037009, China;3. Shanxi Provincial Key Laboratory of Microstructural Electromagnetic Functional Materials, Shanxi Datong University, 037009, China |
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| Abstract: | In a recent paper, we theoretically investigated the density of states of the composite channel–contact system in the Coulomb and Kondo regimes using the self-consistent field approximation. There are the main experimental observations of vibration features in the Coulomb blockade H. Park et al., Nature (London) 407, 57 (2000)] and Kondo L. H. Yu et al., Phys. Rev. Lett. 93, 266802 (2004)] regimes. In the Kondo regime, our results show that one peak at can be observed in the density of states at low temperatures (0.0026 eV ≤ kBT ≤ 0.0000026 eV). Also, the real part of ∑3 has one minimum peak at and the real par of ∑2 has one maximum peak at for 0.01 ≤ μ ≤ 0.07 in the Kondo regime at low temperatures. |
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