Heat transfer between a nano-tip and a surface

Details Heat transfer between a nano-tip and a surface Heat transfer between a nano-tip and a surface

2008-02-14

arxiv.org/abs/0802.1969v1

Nanotechnology 17, 12 (2006) 2978-2981

Physics

Condensed Matter

Materials Science

4 pages

Scientific paper

10.1088/0957-4484/17/12/026

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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