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Article Dans Une Revue Nanotechnology Année : 2006

Heat transfer between a nano-tip and a surface

Résumé

We study quasi-ballistic heat transfer through air between a hot nanometer-scale tip and a sample. The hot tip/surface configuration is widely used to perform nonintrusive confined heating. Using a Monte-Carlo simulation, we find that the thermal conductance reaches 0.8 MW.m-2K-1 on the surface under the tip and show the shape of the heat flux density distribution (nanometer-scale thermal spot). These results show that a surface can be efficiently heated locally without contact. The temporal resolution of the heat transfer is a few tens of picoseconds.
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Dates et versions

hal-00253808 , version 1 (13-02-2008)

Identifiants

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Pierre-Olivier Chapuis, Jean-Jacques Greffet, Karl Joulain, Sebastian Volz. Heat transfer between a nano-tip and a surface. Nanotechnology, 2006, 17 (12), pp.2978-2981. ⟨10.1088/0957-4484/17/12/026⟩. ⟨hal-00253808⟩
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