Rarefied gas heat transfer between a nanometric tip and a sample

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URI: http://hdl.handle.net/2042/6459
Title: Rarefied gas heat transfer between a nanometric tip and a sample
Author: Chapuis, P.-O.; Greffet, J.-J.; Joulain, K.; Volz, S.
Abstract: We study the heat transfer through air between a nanometric tip and a sample. Using a Monte-Carlo simulation, we show that heat flux densities reach 40 MW.m-2 on the surface under the tip. The modeling shows a spatial resolution of 40 nm for a tip size of the same order. This proves the relevance of using quasi-ballistic conduction through air as heat transfer channel in applications such as thermally assisted data storage, scanning thermal microscopy and any temperature control techniques out of contact where a good heat localization is needed.
Subject: Nanoscale heat transfer Monte Carlo simulation nanoscale thermal measurements
Publisher: TIMA Editions , Grenoble, France
Date: 2006

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