Phonon-Assisted Kondo Resonance in Spin-Dependent Transport through a Quantum Dot

• Authors: R. Świrkowicz , M. Wilczyński , J. Barnaś
• Languages of publication: EN

Abstracts

EN

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.

Keywords

EN

73.23.Hk; 73.63.Kv; 73.43.Qt; 72.25.-b

Discipline

• 72.25.-b: Spin polarized transport(for spin polarized transport devices, see 85.75.-d)
• 73.23.Hk: Coulomb blockade; single-electron tunneling
• 73.43.Qt: Magnetoresistance(see also 75.47.-m Magnetotransport phenomena; materials for magnetotransport in magnetic properties and materials)
• 73.63.Kv: Quantum dots

• Journal: Acta Physica Polonica A
• Year: 2009
• Volume: 115
• Issue: 1
• Pages: 272-274

Dates

published

2009-01

Contributors

author

R. Świrkowicz

• Faculty of Physics, Warsaw University of Technology, Koszykowa 75, 00-662 Warsaw, Poland

author

M. Wilczyński

• Faculty of Physics, Warsaw University of Technology, Koszykowa 75, 00-662 Warsaw, Poland

author

J. Barnaś

• Department of Physics, Adam Mickiewicz University, Umultowska 85, 61-614 Poznań, Poland
• Institute of Molecular Physics, Polish Academy of Sciences, M. Smoluchowskiego 17, 60-179 Poznań, Poland

References

• 1. H. Park, J. Park, A.K.L. Lim, E.H. Anderson, A.P. Alivisatos, P.L. McEuen, Nature 407, 57 (2000)
• 2. L.H. Yu, Z.K. Keane, J.W. Ciszek, L. Cheng, M.P. Stewart, J.M. Tour, D. Natelson, Phys. Rev. Lett. 93, 266802 (2004); L.H. Yu, D. Natelson, Nano Lett. 4, 79 (2004)
• 3. Z.-Z. Chen, R. Lu, B.-F. Zhu, Phys. Rev. B 71, 165324 (2005); M. Galperin, A. Nitzan, M.A. Ratner, Phys. Rev. B 73, 045314 (2006); M. Galperin, A. Nitzan, M.A. Ratner, Phys. Rev. B 76, 035301 (2007)
• 4. J. Martinek, M. Sindel, L. Borda, J. Barnaś, J. König, G. Schön, J. von Delft, Phys. Rev. Lett. 91, 247202 (2003); A.N. Pasupathy, R.C. Bialczak, J. Martinek, J.E. Grose, L.A.K. Donev, P.L. McEuen, D.C. Ralph, Science 306, 86 (2004)
• 5. R. Świrkowicz, M. Wilczyński, J. Barnaś, J. Phys., Condens. Matter 18, 2291 (2006)
• 6. R. Świrkowicz, M. Wilczyński, J. Barnaś, J. Phys., Condens. Matter 20, 255219 (2008)
• 7. R.-Q. Wang, Y.-Q. Zhou, D.Y. Xing, J. Phys., Condens. Matter 20, 045219 (2008)
• 8. G.D. Mahan, Many-Particle Physics, Plenum Press, New York 2000
• 9. H. Haug, A.-P. Jauho, Quantum Kinetics in Transport and Optics of Semiconductors, Springer-Verlag, Berlin 1996

Identifiers

DOI

10.12693/APhysPolA.115.272