Influence of Phonon dimensionality on Electron Energy Relaxation

Simple item page
dc.creatorKarvonen, J. T.
dc.creatorMaasilta, I. J.
dc.date2007-04-03
dc.date2007-08-20
dc.date.accessioned2026-07-07T08:44:25Z
dc.date.available2026-07-07T08:44:25Z
dc.descriptionWe studied experimentally the role of phonon dimensionality on electron-phonon (e-p) interaction in thin copper wires evaporated either on suspended silicon nitride membranes or on bulk substrates, at sub-Kelvin temperatures. The power emitted from electrons to phonons was measured using sensitive normal metal-insulator-superconductor (NIS) tunnel junction thermometers. Membrane thicknesses ranging from 30 nm to 750 nm were used to clearly see the onset of the effects of two-dimensional (2D) phonon system. We observed for the first time that a 2D phonon spectrum clearly changes the temperature dependence and strength of the e-p scattering rate, with the interaction becoming stronger at the lowest temperatures below $\sim$ 0.5 K for the 30 nm membranes.
dc.descriptionPhys. Rev. Lett. in press
dc.identifierhttps://arxiv.org/abs/0704.0336
dc.identifierhttp://arxiv.org/abs/0704.0336
dc.identifierPhys. Rev. Lett. 99, 145503 (2007).
dc.identifierdoi:10.1103/PhysRevLett.99.145503
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/142647
dc.subjectMesoscale and Nanoscale Physics
dc.titleInfluence of Phonon dimensionality on Electron Energy Relaxation
dc.typetext

Files

Collections

arXiv