Nonreciprocal Thermal Material by Spatiotemporal Modulation
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Título
Nonreciprocal Thermal Material by Spatiotemporal ModulationFecha de publicación
2018Editor
American Physical SocietyISSN
0031-9007; 1079-7114Tipo de documento
info:eu-repo/semantics/articleVersión de la editorial
https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.120.125501Versión
info:eu-repo/semantics/publishedVersionResumen
The thermal properties of a material with a spatiotemporal modulation, in the form of a traveling wave, in
both the thermal conductivity and the specific heat capacity are studied. It is found that these materials
... [+]
The thermal properties of a material with a spatiotemporal modulation, in the form of a traveling wave, in
both the thermal conductivity and the specific heat capacity are studied. It is found that these materials
behave as materials with an internal convectionlike term that provides them with nonreciprocal properties,
in the sense that the heat flux has different properties when it propagates in the same direction or in the
opposite one to the modulation of the parameters. An effective medium description is presented which
accurately describes the modulated material, and numerical simulations support this description and verify
the nonreciprocal properties of the material. It is found that these materials are promising candidates for the
design of thermal diodes and other advanced devices for the control of the heat flow at all scales. [-]
Publicado en
PHYSICAL REVIEW LETTERS 120 (2018)Proyecto de investigación
ANR-10-LABX-42 ; ANR-10-IDEX-03-02 ; N00014-17-1-2445Derechos de acceso
© 2018 American Physical Society
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