Phonon Focusing and Phonon Transport

2020 ◽  
Author(s):  
Igor Gaynitdinovich Kuleyev ◽  
Ivan Igorevich Kuleyev ◽  
Sergey Mikhailovich Bakharev ◽  
Vladimir Vasilyevich Ustinov
Keyword(s):  
Phonon Transport ◽  
Phonon Focusing

Atomistic Visualization of Ballistic Phonon Transport

2007 ◽  
Author(s):  
Neil Zuckerman ◽  
Jennifer R. Lukes
Keyword(s):  
Heat Transfer ◽  
High Frequency ◽  
Energy Transport ◽  
Imaging Techniques ◽  
Phonon Transport ◽  
Dynamics Simulation ◽  
Short Time Scale ◽  
Ballistic Phonons ◽  
Short Time ◽  
Phonon Focusing

Heat transfer in solid materials at short time scales, short length scales, and low temperatures is governed by the transport of ballistic phonons. In anisotropic crystals, the energy carried by these phonons is strongly channeled into well-defined directions in a phenomenon known as phonon focusing. Presented here is a new molecular dynamics simulation approach for visualizing acoustic phonon focusing in anisotropic crystals. An advantage of this approach over experimental phonon imaging techniques is that it allows examination of phonon propagation at selected modes and frequencies. The spatial, mode, and frequency dependence of ballistic energy transport gained with this approach will be useful for understanding heat transfer issues in high frequency electronics and short time scale laser-material interactions.

Phonon focusing and features of phonon transport in silicon nanofilms and nanowires at low temperatures

2014 ◽  
Vol 252 (2) ◽  
pp. 323-332 ◽  
Author(s):  
I. I. Kuleyev ◽  
I. G. Kuleyev ◽  
S. M. Bakharev
Keyword(s):  
Low Temperatures ◽  
Phonon Transport ◽  
Phonon Focusing

Hierarchical structures lead to high thermoelectric performance in Cum+nPb100SbmTe100Se2m (CLAST)

2021 ◽  
Author(s):  
Siqi Wang ◽  
Yu Xiao ◽  
Yongjin Chen ◽  
Shang Peng ◽  
Dongyang Wang ◽  
...  
Keyword(s):  
Hierarchical Structures ◽  
Phonon Transport ◽  
Thermoelectric Performance

Hierarchical microstructures lead to high thermoelectric performance in Cum+nPb100SbmTe100Se2m (CLAST) through synergistically optimizing carrier and phonon transport.

THE ATOMISTIC GREEN'S FUNCTION METHOD FOR INTERFACIAL PHONON TRANSPORT

2014 ◽  
Vol 17 (N/A) ◽  
pp. 89-145 ◽  
Author(s):  
Sridhar Sadasivam ◽  
Yuhang Che ◽  
Zhen Huang ◽  
Liang Chen ◽  
Satish Kumar ◽  
...  
Keyword(s):  
Green’S Function ◽  
Green's Function ◽  
Function Method ◽  
Phonon Transport ◽  
Green’S Function Method

scholarly journals Structural imaging of nanoscale phonon transport in ferroelectrics excited by metamaterial-enhanced terahertz fields

2017 ◽  
Vol 1 (6) ◽  
Author(s):  
Yi Zhu ◽  
Frank Chen ◽  
Joonkyu Park ◽  
Kiran Sasikumar ◽  
Bin Hu ◽  
...  
Keyword(s):  
Phonon Transport ◽  
Structural Imaging ◽  
Terahertz Fields
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