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Friedel oscillations in the presence of far from equilibrium heat transport
Author(s) -
Gorczyca A.,
Maśka M. M.,
Mierzejewski M.
Publication year - 2009
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.200881557
Subject(s) - friedel oscillations , asymmetry , impurity , position (finance) , condensed matter physics , scattering , chemistry , physics , quantum mechanics , finance , economics
We investigate an inhomogeneous one‐dimensional nanosystem coupled to macroscopic leads of different temperatures. In particular, we consider a system with an impurity with on‐site scattering potential located in the middle of the nanowire. Such an impurity produces oscillations of the density of carriers in its vicinity, the so‐called Friedel oscillations. In the equilibrium case these oscillations are symmetric with respect to the position of the impurity. Here, we demonstrate that strongly asymmetric Friedel oscillations occur if the system is far from the equilibrium. We discuss how this asymmetry depends on the model parameters and the difference of the temperatures of the leads (© 2009 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)