Origin of the Acoustic Bandgaps in Hypersonic Colloidal Phononics: The Role of the Elastic Impedance

Autor: Yu Cang, Rebecca Sainidou, Pascal Rembert, Giulia Magnabosco, Tim Still, Nicolas Vogel, Bartlomiej Graczykowski, George Fytas
Jazyk: angličtina
Rok vydání: 2022
Předmět:
Zdroj: The Journal of Physical Chemistry B
Popis: How phonons propagate in nanostructures determines the flow of elastic and thermal energy in dielectric materials. However, a reliable theoretical prediction of the phonon dispersion relation requires experimental verification both near to and far from the Brillouin zone of the nanostructure. We report on the experimental hypersonic phonon dispersion of hard (SiO
Databáze: OpenAIRE