Spintronics-based mesoscopic heat engine
Journal article, 2012

We consider a nanowire suspended between two spin-polarized leads and subjected to a nonuniform magnetic field. We show that a temperature drop between the leads can significantly affect the nanowire dynamics. In particular, it is demonstrated that, under certain conditions, the stationary distribution of the mechanical subsystem has a Boltzmann form with an effective temperature, which is lower than the temperature of the "cold" lead; this seems rather counterintuitive. We also find that a change in the direction of the temperature gradient can result in the generation of mechanical vibrations rather than the heating of the mechanical subsystem.

systems

carbon nanotubes

Author

Juan Atalaya

Chalmers, Applied Physics, Condensed Matter Theory

Leonid Gorelik

Chalmers, Applied Physics, Condensed Matter Theory

Physical Review B - Condensed Matter and Materials Physics

1098-0121 (ISSN)

Vol. 85 24 Article Number: 245309 -

Quantum Nanoelectromechanical Systems (QNEMS)

European Commission (FP7), 2009-09-01 -- 2012-08-31.

Subject Categories

Physical Sciences

DOI

10.1103/PhysRevB.85.245309

More information

Created

10/6/2017