Nanoelectromechanical Heat Engine Based on Electron-Electron Interaction
Artikel i vetenskaplig tidskrift, 2016

We theoretically show that a nanoelectromechanical system can be mechanically actuated by a heat flow through it via an electron-electron interaction. In contrast to most known actuation mechanisms in similar systems, this new mechanism does not involve an electronic current nor external ac fields. Instead, the mechanism relies on deflection-dependent tunneling rates and a heat flow which is mediated by an electron-electron interaction while an electronic current through the device is prohibited by, for instance, a spin-valve effect. Therefore, the system resembles a nanoelectromechanical heat engine. We derive a criterion for the mechanical instability and estimate the amplitude of the resulting self-sustained oscillations. Estimations show that the suggested phenomenon can be studied using available experimental techniques.





coulomb-blockade nanostructures


nanotube mechanical resonators


Anton Vikström

Chalmers, Fysik, Kondenserade materiens teori

Martin Eriksson

Chalmers, Fysik, Kondenserade materiens teori

Sergeij I. Kulinich

B Verkin Institute for Low Temperature Physics and Engineering Nasu

Leonid Gorelik

Chalmers, Fysik, Kondenserade materiens teori

Physical Review Letters

0031-9007 (ISSN) 1079-7114 (eISSN)

Vol. 117 247701


Fusion, plasma och rymdfysik

Den kondenserade materiens fysik