ThermoPhononics: Heat blockade, tunnelling and topological heat flow
Main funder
Funder's project number: 341823
Funds granted by main funder (€)
- 538 955,00
Funding program
Project timetable
Project start date: 01/09/2021
Project end date: 31/08/2025
Summary
We propose to study several novel ways to control and strongly modify heat flow, using nanoscale devices such as phononic crystals and phononic glass, topological phononic metamaterials and phonon tunnel junctions. The effects to demonstrate and exploit are i) localization of heat flow with disorder, ii) electrical control of phonon heat flow, iii) tunnelling of phonons across vacuum gaps and iv) dissipationless topological edge modes. We expect to see orders of magnitude reduction or enhancement of heat flow, as well as guiding, filtering and rectification of phononic heat transport at low temperatures. Possible applications range from improved performance of ultrasensitive radiation detectors to heat dissipation management of quantum processors to energy harvesting from waste heat.
Principal Investigator
Primary responsible unit
Follow-up groups
Related publications and other outputs
- Complete tunneling of acoustic waves between piezoelectric crystals (2023) Geng, Zhuoran; et al.; A1; OA
- Effective medium theory for the low-temperature heat capacity of a metasolid plate (2023) Puurtinen, Tuomas, A.; et al.; A1; OA
- Acoustic wave tunneling across a vacuum gap between two piezoelectric crystals with arbitrary symmetry and orientation (2022) Geng, Zhuoran; et al.; A1; OA
- Analytical Models for the Pulse Shape of a Superconductor-Ferromagnet Tunnel Junction Thermoelectric Microcalorimeter (2022) Geng, Z.; et al.; A1; OA
- Specific heat of thin phonon cavities at low temperature : Very high values revealed by zeptojoule calorimetry (2022) Tavakoli, Adib; et al.; A1; OA
- Controlling thermal conductance using three-dimensional phononic crystals (2021) Heiskanen, Samuli; et al.; A1; OA