Thermal conductance of DNW and phonon dispersion relation. (left) Thermal conductance as a function of the diameter of DNW without vacancy defects for several temperature. Inset is the exponent n of diameter dependence of thermal conductance for several temperature. (right) Phonon dispersion relation of 〈100〉 DNW with 1.0 nm in diameter for the wave vector q. Here a=3.567 Å. Green and purple solid lines show weight functions in thermal conductance for 300 and 5 K.
Yamamoto et al. Nanoscale Research Letters 2013 8:256 doi:10.1186/1556-276X-8-256