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A method for atomic-level noncontact thermometry with electron energy distribution
- Source :
- Japanese Journal of Applied Physics. 56:048004
- Publication Year :
- 2017
- Publisher :
- IOP Publishing, 2017.
-
Abstract
- We devised a new method of determining the temperatures of materials with their electron-energy distributions. The Fermi–Dirac distribution convoluted with a linear combination of Gaussian and Lorentzian distributions was fitted to the photoelectron spectrum measured for the Au(110) single-crystal surface at liquid N2-cooled temperature. The fitting successfully determined the surface-local thermodynamic temperature and the energy resolution simultaneously from the photoelectron spectrum, without any preliminary results of other measurements. The determined thermodynamic temperature was 99 ± 2.1 K, which was in good agreement with the reference temperature of 98.5 ± 0.5 K measured using a silicon diode sensor attached to the sample holder.
- Subjects :
- Physics and Astronomy (miscellaneous)
Chemistry
Photoemission spectroscopy
Gaussian
Resolution (electron density)
General Engineering
Analytical chemistry
General Physics and Astronomy
02 engineering and technology
Thermodynamic temperature
021001 nanoscience & nanotechnology
symbols.namesake
Distribution (mathematics)
020401 chemical engineering
symbols
0204 chemical engineering
Atomic physics
0210 nano-technology
Linear combination
Energy (signal processing)
Diode
Subjects
Details
- ISSN :
- 13474065 and 00214922
- Volume :
- 56
- Database :
- OpenAIRE
- Journal :
- Japanese Journal of Applied Physics
- Accession number :
- edsair.doi...........afbc21e26e5eb1ae23bde4b834140b77
- Full Text :
- https://doi.org/10.7567/jjap.56.048004