The recently growing research field called “Nanophononics” deals with the investigation and control of vibrations in solids at the nanoscale. Phonon engineering leads to a controlled modification of phonon dispersion, phonon interactions, and transport.^1,2 However, engineering and probing phonons and phonon transport at the nanoscale is a non-trivial problem.

In this talk, we discuss how phononic properties can be engineered in nanowires ³ and the challenges and progresses in the measurement of the thermal conductivity of nanostructures and low dimensional systems.⁴

References:

¹ M. Maldovan, Nature 503, 209 (2013)

² S. Voltz et al., Eur. Phys. J. B 89, 15 (2016)

³ M. De Luca et al. Nano Lett. 19, 4702 (2019)

⁴ D. Vakulov et al. Nano Lett. 20, 2703-2709 (2020)