2010/07/31 by Simone Gasparinetti, Fabio Deon, G. Biasiol +4
Chemistry · Physics and Astronomy · #Atomic physics #Chemistry #Condensed matter physics #Coulomb #Coulomb blockade #Electron #Electron temperature #Lipid microdomain #Phonon #Physics #Physics of Superconductivity and Magnetism #Quantum and electron transport phenomena #Quantum dot #Quantum mechanics #Relaxation (psychology) #Semiconductor Quantum Structures and Devices #cond-mat.mes-hall
paper · pdf · doi:10.1103/physrevb.83.201306
published as Phys. Rev. B 83, 201306(R) (2011) · 5 pages, 4 figures
openalex publication_date 2011/05/18 · arxiv created 2012/06/01 · arxiv updated 2012/06/04 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We demonstrate local detection of the electron temperature in a two-dimensional microdomain using a quantum dot. Our method relies on the observation that a temperature bias across the dot changes the functional form of Coulomb-blockade peaks. We apply our results to the investigation of electron-energy relaxation at subkelvin temperatures, find that the energy flux from electrons into phonons is proportional to the fifth power of temperature, and give a measurement of the coupling constant.