Role of the chemical bonding for the time-dependent electron transport through an interacting quantum dot
Type
ArticleKAUST Department
Computational Physics and Materials Science (CPMS)Core Labs
Material Science and Engineering Program
Physical Science and Engineering (PSE) Division
Spintronics Theory Group
Date
2011-06Permanent link to this record
http://hdl.handle.net/10754/561789
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A combination of ab initio and many-body calculations is utilized to determine the effects of the bonding in Au electrodes on the time dependent current through a quantum dot suddenly shifted into the Kondo regime by a gate voltage. For an asymmetrically coupled system the instantaneous conductance exhibits fluctuations. The frequencies of the fluctuations turn out to be proportional to the energetic separation between the dominating peaks in the density of states and the Fermi level. The chemical bonding in the electrodes, thus, drastically alters the transient current, which can be accessed by ultrafast pump-probe techniques. © 2011 Elsevier B.V. All rights reserved.Citation
Goker, A., Zhu, Z. Y., Manchon, A., & Schwingenschlögl, U. (2011). Role of the chemical bonding for the time-dependent electron transport through an interacting quantum dot. Chemical Physics Letters, 509(1-3), 48–50. doi:10.1016/j.cplett.2011.04.086Publisher
Elsevier BVJournal
Chemical Physics Lettersae974a485f413a2113503eed53cd6c53
10.1016/j.cplett.2011.04.086