Abbreviated Journal Title
Phys. Rev. B
Keywords
TRANSPORT; Physics, Condensed Matter
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.
Journal Title
Physical Review B
Volume
86
Issue/Number
12
Publication Date
1-1-2012
Document Type
Article
Language
English
First Page
9
WOS Identifier
ISSN
1098-0121
Recommended Citation
Arrachea, Liliana; Mucciolo, Eduardo R.; Chamon, Claudio; and Capaz, Rodrigo B., "Microscopic model of a phononic refrigerator" (2012). Faculty Bibliography 2010s. 2244.
https://stars.library.ucf.edu/facultybib2010/2244
Comments
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