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Spintronics-based mesoscopic heat engine

Juan Atalaya (Institutionen för teknisk fysik, Kondenserade materiens teori) ; Leonid Y. Gorelik (Institutionen för teknisk fysik, Kondenserade materiens teori)
Physical Review B (1098-0121). Vol. 85 (2012), 24, p. Article Number: 245309 .
[Artikel, refereegranskad vetenskaplig]

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.

Nyckelord: carbon nanotubes, systems



Denna post skapades 2012-07-05. Senast ändrad 2012-07-05.
CPL Pubid: 160099

 

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Institutioner (Chalmers)

Institutionen för teknisk fysik, Kondenserade materiens teori (1900-2015)

Ämnesområden

Fysik

Chalmers infrastruktur

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Projekt

Denna publikation är ett resultat av följande projekt:


Quantum nanoelectromechanical systems (QNEMS) (EC/FP7/233992)