Analysis of heat transfer in the water meniscus at the tip-sample contact in scanning thermal microscopy

2014 ◽  
Vol 47 (44) ◽  
pp. 442001 ◽  
Author(s):  
Ali Assy ◽  
Stéphane Lefèvre ◽  
Pierre-Olivier Chapuis ◽  
Séverine Gomès
Keyword(s):  
Heat Transfer ◽  
Scanning Thermal Microscopy ◽  
Thermal Microscopy ◽  
Water Meniscus

Tip-Sample Heat Transfer in Non-Contact Mode Scanning Thermal Microscopy With Wollaston Microprobes

2011 ◽  
Author(s):  
Yanliang Zhang ◽  
Liang Han ◽  
Theodorian Borca-Tasciuc
Keyword(s):  
Heat Transfer ◽  
High Spatial Resolution ◽  
Thermal Characterization ◽  
Scanning Thermal Microscopy ◽  
Solid Contact ◽  
Sample Heat ◽  
Contact Mode ◽  
Thermal Microscopy ◽  
Liquid Meniscus ◽  
Minimal Sample

Scanning thermal microscopy (SThM) is an attractive tool for high spatial resolution thermal characterization with minimal sample preparation.1 SThM measurements are usually performed in contact-mode, which entails multiple tip-sample heat transfer pathways, i.e. across air gap, liquid meniscus, and the solid contact. These hinder the quantification of the sample temperature or thermal properties or result in large uncertainties.2

Heat transfer in ultrahigh vacuum scanning thermal microscopy

1999 ◽  
Vol 17 (4) ◽  
pp. 1205-1210 ◽  
Author(s):  
W. Müller-Hirsch ◽  
A. Kraft ◽  
M. T. Hirsch ◽  
J. Parisi ◽  
A. Kittel
Keyword(s):  
Heat Transfer ◽  
Ultrahigh Vacuum ◽  
Scanning Thermal Microscopy ◽  
Thermal Microscopy

Heat Transfer between a Self-Heated Scanning Thermal Microscopy Probe and a Cold Sample: Impact of the Probe Temperature

2013 ◽  
Vol 1557 ◽  
Author(s):  
Ali Assy ◽  
Séverine Gomès ◽  
Stéphane Lefèvre ◽  
Pierre-Olivier Chapuis
Keyword(s):  
Heat Transfer ◽  
Experimental Data ◽  
Predictive Modeling ◽  
Thermal Conductance ◽  
Electrical Current ◽  
Relative Difference ◽  
Scanning Thermal Microscopy ◽  
Ambient Conditions ◽  
Thermal Microscopy ◽  
Thermal Exchange

ABSTRACTScanning Thermal Microscopy measurements with a resistive microprobe electrically heated were performed for different probe temperatures, for probe free in air and in contact with various specimens. The measured relative difference of Joule power dissipated in the probe when tip is in contact with a sample and when it is free in air is studied for different magnitude of the electrical current that heats the probe. A variation of this signal, never outlined before, is observed. A predictive modeling is used to explain these results and identify from the experimental data the global thermal conductance of the probe-sample thermal exchange for experiments performed in ambient conditions.

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