Nonlinear conductance of nanowires - A signature of Luttinger liquid effects?

Details Nonlinear conductance of nanowires - A signature of Luttinger liquid effects? Nonlinear conductance of nanowires - A signature of Luttinger liquid effects?

1997-10-29

arxiv.org/abs/cond-mat/9710307v1

Physics

Condensed Matter

13 pages, latex with supplied stylefile, 3 figures in eps format, submitted to Superlattices and Microstructures

Scientific paper

10.1006/spmi.1997.0556

We analyze recent measurements of the room temperature current-voltage characteristics of gold nanowires, whose zero current conductance is quantized in units of $2e^2/h$. A faster than linear increase of current with voltage was observed at low voltages beginning from $V_c=0.1$V. We analyze the nonlinear behavior in terms of a dynamic Coulomb blockade of conducting modes and show that it may be explained as a Luttinger-liquid effect.

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