Abstract
We demonstrate that the tunneling current flowing through a system with Coulomb correlations leads to a charge redistribution between the different localized states. A simple model consisting of two electron levels is analyzed by means of the Heisenberg equations of motion taking correlations of electron filling numbers in localized states into account exactly in all orders. We consider various relations between the Coulomb interaction and localized electron energies. Sudden jumps of the electron density at each level in a certain range of the applied bias are found. We find that for some parameter range, inverse occupation in the two-level system appears due to Coulomb correlations. It is also shown that Coulomb correlations lead to the appearance of negative tunneling conductivity at a certain relation between the values of tunneling rates from the two electron levels.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
M. V. Feigel’man and A. S. Ioselevich, JETP Lett. 81(6), 277 (2005).
I. S. Beloborodov, A. V. Lopatin, V. M. Vinokur, and K. B. Efetov, Rev. Mod. Phys. 79, 469 (2007).
J. Konig and Y. Gefen, Phys. Rev. B: Condens. Matter 71, 201308(R) (2005).
A. Levi Yeyati and M. Buttiker, Phys. Rev. B: Condens. Matter 62, 7307 (2000).
P. Pou, R. Perez, F. Flores, A. Levy Yeyati, A. Martin-Rodero, J. M. Blanco, F. J. Garcia-Vidal, and J. Ortega, Phys. Rev. B: Condens. Matter 62, 4309 (2000).
J. Kondo, Prog. Theor. Phys. 32, 37 (1964).
Y. Goldin and Y. Avishai, Phys. Rev. B: Condens. Matter 61, 16750 (2000).
A.-P. Jauho, N. Wingreen, and Y. Meir, Phys. Rev. B: Condens. Matter 50, 5528 (1994).
J. Konig, T. Pohjola, H. Schoeller, and G. Schon, Physica E (Amsterdam) 6, 371 (2000).
Y. Meir, N. S. Wingreen, and P. Lee, Phys. Rev. Lett. 66, 3048 (1991).
D. V. Averin, A. N. Korotkov, and K. K. Likharev, Phys. Rev. B: Condens. Matter 44, 6191 (1991).
I. M. Ruzin, V. Chandrasekhar, E. Levin, and L. Glazman, Phys. Rev. B: Condens. Matter 45, 13469 (1992).
K. Kikoin and Y. Avishai, Phys. Rev. Lett. 86, 2090 (2001).
L. V. Keldysh, Sov. Phys. JETP 20, 1018 (1964).
P. I. Arseyev, N. S. Maslova, V. I. Panov, and S. V. Savinov, JETP 94(1), 191 (2002).
N. S. Maslova, JETP Lett. 51(12), 712 (1990).
P. I. Arseyev, N. S. Maslova, and V. N. Mantsevich, JETP Letters 94, 390 (2011).
V. V. Kuznetsov, A. K. Savchenko, D. R. Mace, E. H. Linfield, and D. A. Ritchie, Phys. Rev. B: Condens. Matter 56, R15533 (1997).
A. U. Sharfutdinov and I. S. Burmistrov, arXiv:1103.2425v1.
Author information
Authors and Affiliations
Corresponding author
Additional information
The article is published in the original.
Rights and permissions
About this article
Cite this article
Arseev, P.I., Maslova, N.S. & Mantsevich, V.N. The effect of coulomb correlations on the nonequilibrium charge redistribution tuned by the tunneling current. J. Exp. Theor. Phys. 115, 141–153 (2012). https://doi.org/10.1134/S1063776112060027
Received:
Published:
Issue Date:
DOI: https://doi.org/10.1134/S1063776112060027