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Voltage Profile and Four Terminal Resistance of an Interacting Quantum Wire by Arrachea, Liliana; Naón, Carlos; Salvay, Mariano is a scholarly article available to read on EtoBox.

What is Voltage Profile and Four Terminal Resistance of an Interacting Quantum Wire about?

We investigate the behavior of the four-terminal resistance $R_{4pt}$ in a quantum wire described by a Luttinger liquid in two relevant situations: (i) in the presence of a single impurity within the wire and (ii) under the effect of asymmetries introduced by dirty voltage probes. In the first case, interactions leave a signature in a power law behavior of $R_{4pt}$ as a function of the voltage $V$ and the temperature $T$. In the second case interactions tend to mask the effect of the asymmetries. In both scenarios the occurrence of negative values of $R_{4pt}$ is explained in simple terms.

Author

Arrachea, Liliana; Naón, Carlos; Salvay, Mariano

Published

2007

Language

EN