Suspended crystalline silicon thermometry devices: towards quantum nanophononics

Jon Canosa (1, 2) , Hafsa Ikzibane (1, 2) , Boris Brisuda (3) , Natalio Mingo (4) , Olivier Bourgeois (3) , Emmanuel Dubois (1, 2) , Jean-François Robillard (1, 2)

1 MICROELEC SI - IEMN - Microélectronique Silicium - IEMN
2 IEMN - Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520
3 NEEL - TPS - Thermodynamique et biophysique des petits systèmes
4 LITEN - Laboratoire d'Innovation pour les Technologies des Energies Nouvelles et les nanomatériaux

This work addresses the current experimental gap in thermal transport regimes and phonon transport at low temperatures and small scales. These conditions cause the wavelength λ and mean free pass Λ of phonons to become equal or greater than the sample’s dimensions, giving rise to several interesting quantum phenomena, hence the name quantum nanophononics. Multiple phenomena are expected to be studied : Phonon interferometric effects [1], thermal rectification, quantization of thermal transport, etc...

Domaines: Physique [physics]; Sciences de l'ingénieur [physics]

Jon Canosa, Hafsa Ikzibane, Boris Brisuda, Natalio Mingo, Olivier Bourgeois, et al.. Suspended crystalline silicon thermometry devices: towards quantum nanophononics. Nanoscale and Microscale Heat Transfer VII - Eurotherm, May 2022, Palermo, Italy. ⟨hal-03870287⟩