Acoustic Phonons in Nanowires with Embedded Heterostructures
Figure 4
These figures illustrate that the phonon dispersion relations in pure GaAs nanowire and GaAs/AlAs nanowire-heterostructures are almost identical. (a) GaAs nanowire and GaAs/AlAs nanowire-heterostructure with isotropic approximation. (b) Same structures calculated with cubic symmetry. The wire length is 225 nm in all cases.
