Zardo, Ilaria

Date:   Thursday, May 20, 2021
Time:   10:00
Place:   scheduled Zoom meeting
Host:    Klaus Ensslin

Towards phonon engineering at the nanoscale:
material design and innovative experimental techniques

Ilaria Zardo
University of Basel

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 3-5 and the challenges and progresses in the measurement of the thermal conductivity of nanostructures and low dimensional systems.6,7
Finally, we discuss our recent work on two-dimensional systems and their interest for the investigation of hydrodynamic transport.8

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. de Matteis et al. ACS Nano 14, 6845-6856 (2020)
5 E. M. T. Fadaly et al. Nano Letters 21, 3619-3625 (2021)
6 D. Vakulov et al. Nano Lett. 20, 2703-2709 (2020)
7 M. Y. Swikels et al. Phys. Rev. Appl. 14, 024045 (2020)
8 M. De Luca et al. 2D Materials 7, 035017 (2020)