Spectral concentration of thermal conductivity in GaN—A first-principles study

We find using first-principles analysis of thermal conductivity (k) in isotopically pure Gallium nitride (GaN) that almost 60% of the heat is conducted by phonons in a very narrow frequency range of 5-7 THz (spanning only 9% of the frequencies in GaN). This spectral focusing of thermal conductivity...

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Bibliographic Details
Main Authors: Garg, Jivtesh, Luo, Tengfei, Chen, Gang
Other Authors: Massachusetts Institute of Technology. Department of Mechanical Engineering
Format: Article
Language:English
Published: AIP Publishing 2020
Online Access:https://hdl.handle.net/1721.1/128109