Measuring phonon properties in nanostructures ... the nanostructure caused the quantum dots' vibrations to soften, a process that hinders heat transfer in thermoelectrics. Crucially, the ...

In a crystalline material atoms vibrate about the rigid lattice sites and one of the most important scattering mechanisms for mobile carriers in semiconductors is due to these vibrations. In our ...

Phonons are "quasiparticles," characterized by the collective vibration ... flow of heat in the forward direction. This effect was evident up to 60 K, but the effects of phonon scattering at ...

In their study published in Nature, the research team demonstrates the ability to control heat ... phonon transport." Phonons ...