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Abstract:

We analyze a simple microscopic model to pump heat from a cold to a hot reservoir in a nanomechanical system. The model consists of a one-dimensional chain of masses and springs coupled to a back gate through which a time-dependent perturbation is applied. The action of the gate creates a moving phononic barrier by locally pinning a mass. We solve the problem numerically using a nonequilibrium Green's function technique. For low driving frequencies and for sharp traveling barriers, we show that this microscopic model realizes a phonon refrigerator. © 2012 American Physical Society.

Registro:

Documento: Artículo
Título:Microscopic model of a phononic refrigerator
Autor:Arrachea, L.; Mucciolo, E.R.; Chamon, C.; Capaz, R.B.
Filiación:Departamento de Física, FCEyN and IFIBA, Universidad de Buenos Aires, Pabellón 1, 1428 Buenos Aires, Argentina
Department of Physics, University of Central Florida, Orlando, FL 32816, United States
Department of Physics, Boston University, Boston, MA 02215, United States
Instituto de Física, Universidade Federal Do Rio de Janeiro, Caixa Postal 68528, Rio de Janeiro 21941-972, Rio de Janeiro, Brazil
Año:2012
Volumen:86
Número:12
DOI: http://dx.doi.org/10.1103/PhysRevB.86.125424
Título revista:Physical Review B - Condensed Matter and Materials Physics
Título revista abreviado:Phys. Rev. B Condens. Matter Mater. Phys.
ISSN:10980121
CODEN:PRBMD
PDF:https://bibliotecadigital.exactas.uba.ar/download/paper/paper_10980121_v86_n12_p_Arrachea.pdf
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10980121_v86_n12_p_Arrachea

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Citas:

---------- APA ----------
Arrachea, L., Mucciolo, E.R., Chamon, C. & Capaz, R.B. (2012) . Microscopic model of a phononic refrigerator. Physical Review B - Condensed Matter and Materials Physics, 86(12).
http://dx.doi.org/10.1103/PhysRevB.86.125424
---------- CHICAGO ----------
Arrachea, L., Mucciolo, E.R., Chamon, C., Capaz, R.B. "Microscopic model of a phononic refrigerator" . Physical Review B - Condensed Matter and Materials Physics 86, no. 12 (2012).
http://dx.doi.org/10.1103/PhysRevB.86.125424
---------- MLA ----------
Arrachea, L., Mucciolo, E.R., Chamon, C., Capaz, R.B. "Microscopic model of a phononic refrigerator" . Physical Review B - Condensed Matter and Materials Physics, vol. 86, no. 12, 2012.
http://dx.doi.org/10.1103/PhysRevB.86.125424
---------- VANCOUVER ----------
Arrachea, L., Mucciolo, E.R., Chamon, C., Capaz, R.B. Microscopic model of a phononic refrigerator. Phys. Rev. B Condens. Matter Mater. Phys. 2012;86(12).
http://dx.doi.org/10.1103/PhysRevB.86.125424