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Spintronics-based mesoscopic heat engine
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DOI：10.1103/PhysRevB.85.245309.png)
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Abstract
En 中文
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.
Keywords:
CARBON NANOTUBES
SYSTEMS
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