Thermal energy transport in harmonic systems

1984 ◽  
Vol 45 (2) ◽  
pp. 133-140 ◽  
Author(s):  
Stephan L. Linn ◽  
Harry S. Robertson
2017 ◽  
Vol 2 (10) ◽  
pp. 2283-2292 ◽  
Author(s):  
Xingfei Wei ◽  
Teng Zhang ◽  
Tengfei Luo

Author(s):  
Saman Rashidi ◽  
Faramarz Hormozi ◽  
Nader Karimi ◽  
Waqar Ahmed

Author(s):  
Ravi Prasher ◽  
Tao Tong ◽  
Arun Majumdar

The advent of nanotechnology makes it possible to make constrictions of nanoscale size between contacting solids. For example devices or structures made of nanowires and nanoparticles can form a nano sized constriction. In these structures, the nanowires or nanoparticles are typically in contact with each other or another solid surface forming contact constrictions of the order of few nanometers. Understanding the thermal energy transport across the nano-constrictions is of critical importance in these applications. Our previous study derived the ballistic conductance across the constriction (Prasher, R.S., Nano Letters 5, 2155-2159 (2005)). In this paper, we further consider the wave effect of the phonons when crossing the constrictions. We show in the Rayleigh regime, where the dominant phonon wavelengths are much larger than the constriction sizes, the constriction conductance varies with temperature as T7


2002 ◽  
Vol 2002.77 (0) ◽  
pp. _2-19_-_2-20_
Author(s):  
Qiu sheng LIU ◽  
Akira YABE ◽  
Fumio TAKEMURA ◽  
Shiro KAJIYAMA ◽  
Katsuya FUKUDA

2017 ◽  
Vol 7 (1) ◽  
Author(s):  
Feng Liu ◽  
Xuyang Liu ◽  
Ning Hu ◽  
Huiming Ning ◽  
Satoshi Atobe ◽  
...  

2009 ◽  
Vol 476 (4-6) ◽  
pp. 271-276 ◽  
Author(s):  
Philipp A.E. Schoen ◽  
Bruno Michel ◽  
Alessandro Curioni ◽  
Dimos Poulikakos

2011 ◽  
Vol 109 (7) ◽  
pp. 074321 ◽  
Author(s):  
Tengfei Luo ◽  
Keivan Esfarjani ◽  
Junichiro Shiomi ◽  
Asegun Henry ◽  
Gang Chen

2009 ◽  
Vol 132 (3) ◽  
Author(s):  
Tengfei Luo ◽  
John R. Lloyd

In this paper, equilibrium molecular dynamics simulations were performed on Au-SAM (self-assembly monolayer)-Au junctions. The SAM consisted of alkanedithiol (–S–(CH2)n–S–) molecules. The out-of-plane (z-direction) thermal conductance and in-plane (x- and y-direction) thermal conductivities were calculated. The simulation finite size effect, gold substrate thickness effect, temperature effect, normal pressure effect, molecule chain length effect, and molecule coverage effect on thermal conductivity/conductance were studied. Vibration power spectra of gold atoms in the substrate and sulfur atoms in the SAM were calculated, and vibration coupling of these two parts was analyzed. The calculated thermal conductance values of Au-SAM-Au junctions are in the range of experimental data on metal-nonmetal junctions. The temperature dependence of thermal conductance has a similar trend to experimental observations. It is concluded that the Au-SAM interface resistance dominates thermal energy transport across the junction, while the substrate is the dominant media in which in-plane thermal energy transport happens.


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