Mañana, JUEVES, 24 DE ABRIL, el sistema se apagará debido a tareas habituales de mantenimiento a partir de las 9 de la mañana. Lamentamos las molestias.
Electromagnetic absorption mechanisms in metal nanospheres: Bulk and surface effects in radiofrequency-terahertz heating of nanoparticles
Entity
UAM. Departamento de Física Teórica de la Materia CondensadaPublisher
American Institute of Physics.Date
2011-06-15Citation
10.1063/1.3600222
Journal of Applied Physics 109.12 (2011): 124306
ISSN
0021-8979 (print); 1089-7550 (online)DOI
10.1063/1.3600222Funded by
Support by the Spanish Ministerio de Ciencia e Innovación Grant No. FIS2008-04209 and the Swedish Foundation for Strategic Research (metamaterial Grant No. SSF RMA08-0109) is acknowledged.Editor's Version
http://dx.doi.org/10.1063/1.3600222Subjects
Nanoparticles; RF heating; Fermi surface; Gold; Electric fields; FísicaNote
The following article appeared in Journal of Applied Physics 109.12 (2011): 124306 and may be found at http://scitation.aip.org/content/aip/journal/jap/109/12/10.1063/1.3600222Rights
© 2011 American Institute of Physics.Abstract
We report on the absorption of electromagnetic radiation by metallic nanoparticles in the radio and far infrared frequency range, and subsequent heating of nanoparticle solutions. A recent series of papers has measured considerable radio frequency (RF) heating of gold nanoparticle solutions. In this work, we show that claims of RF heating by metallic nanoparticles are not supported by theory. We analyze several mechanisms by which nonmagnetic metallic nanoparticles can absorb low frequency radiation, including both classical and quantum effects. We conclude that none of these absorption mechanisms, nor any combination of them, can increase temperatures at the rates recently reported. A recent experiment supports this finding.
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Google Scholar:Hanson, George W.
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Monreal Vélez, Rosa
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Apell, Sten Peter
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