Investigation of phonon coherence and backscattering using silicon nanomeshes
oleh: Jaeho Lee, Woochul Lee, Geoff Wehmeyer, Scott Dhuey, Deirdre L. Olynick, Stefano Cabrini, Chris Dames, Jeffrey J. Urban, Peidong Yang
| Format: | Article |
|---|---|
| Diterbitkan: | Nature Portfolio 2017-01-01 |
Deskripsi
Low thermal conductivities in nanomeshes have been attributed to both wave-like and particle-like behaviour of phonons. Here, the authors use periodicity-controlled silicon nanomeshes to show that the particle backscattering effect dominates for periodicities above 100 nm and temperatures above 14 K.