Journal
NANO LETTERS
Volume 14, Issue 2, Pages 541-546Publisher
AMER CHEMICAL SOC
DOI: 10.1021/nl403596b
Keywords
Nanowires; time dependent; X-ray diffraction; elastic properties; thermal conductivity; indium antimonide
Categories
Funding
- Swedish Research Council (VR)
- Knut and Alice Wallenberg Foundation
- Crafoord Foundation
- Stiftelsen Olle Engkvist byggmastare
- Nanometer Structure Consortium at Lund University
- Natural Sciences and Engineering Research Council of Canada
Ask authors/readers for more resources
The modified phonon dispersion is of importance for understanding the origin of the reduced heat conductivity in nanowires. We have measured the phonon dispersion for 50 nm diameter InSb (111) nanowires using time-resolved X-ray diffraction. By comparing the sound speed of the bulk (3880 m/s) and that of a classical thin rod (3600 m/s) to our measurement (2880 m/s), we conclude that the origin of the reduced sound speed and thereby to the reduced heat conductivity is that the C-44 elastic constant is reduced by 35% compared to the bulk material.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available
Share Paper
