Journal
PHYSICAL REVIEW B
Volume 83, Issue 20, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.83.201306
Keywords
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Funding
- INFM-CNR
- NanoSciERA Project
- European Community [228464]
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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.
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