Phonon-Assisted Kondo Resonance in Spin-Dependent Transport through a Quantum Dot |
| R. Świrkowicz, M. Wilczyński
Faculty of Physics, Warsaw University of Technology, Koszykowa 75, 00-662 Warsaw, Poland |
| and J. Barnaś
Department of Physics, Adam Mickiewicz University, Umultowska 85, 61-614 Poznań, Poland, and Institute of Molecular Physics, Polish Academy of Sciences, M. Smoluchowskiego 17, 60-179 Poznań, Poland |
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| Effects of local vibrational modes on electron transport through a quantum dot attached to ferromagnetic electrodes are studied in the Kondo regime by the non-equilibrium Green function formalism based on the equation of motion method. Differential conductance is calculated for parallel and antiparallel configurations of the leads' magnetic moments, and well defined Kondo resonance peaks and their phonon satellites are found. The influence of a compensating magnetic field on the peak positions is also discussed. |
| DOI: 10.12693/APhysPolA.115.272 PACS numbers: 73.23.Hk, 73.63.Kv, 73.43.Qt, 72.25.-b |