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2008 | 113 | 1 | 587-590
Article title

Tunnel Magnetoresistance for Phonon-Assisted Tunneling through Quantum Dots

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Content
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EN
Abstracts
EN
Spin-polarized transport through a single-level quantum dot interacting with a local phonon mode is studied in the frame of the nonequilibrium Green-function technique. It is shown that strong electron-phonon interaction gives rise to a significant current suppression, to additional resonance peaks in the differential conductance as well as to oscillations of the tunnel magnetoresistance. Also, a phonon-induced mechanism leading to a minimum in tunnel magnetoresistance at zero bias voltage is explained.
Keywords
EN
Publisher

Year
Volume
113
Issue
1
Pages
587-590
Physical description
Dates
published
2008-01
received
2007-07-09
Contributors
author
  • Department of Physics, Adam Mickiewicz University, Umultowska 85, 61-614 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. M. Galperin, A. Nitzan, M.A. Ratner, Phys. Rev. B 73, 045314 (2006)
  • 3. J. Koch, M.E. Raikh, F. von Oppen, Phys. Rev. Lett. 96, 056803 (2006)
  • 4. W. Rudziński, J. Barnaś, R.Świrkowicz, M. Wilczyński, Phys. Rev. B 71, 205307 (2005)
  • 5. G.D. Mahan, Many-Particle Physics, Plenum Press, New York 2000
  • 6. A.-P. Jauho, N.S. Wingreen, Y. Meir, Phys. Rev. B 50, 5528 (1994)
Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.bwnjournal-article-appv113n1143kz
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