Thermionic emission from small clusters : direct observation of the kinetic energy distribution of the electrons
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| Type of Publication: | Journal article |
| URI (citable link): | http://nbn-resolving.de/urn:nbn:de:bsz:352-opus-87909 |
| Author: | Weidele, Horst; Kreisle, Dietmar; Recknagel, Ekkehard; Schulze Icking-Konert, Georg; Handschuh, Haiko; Ganteför, Gerd; Eberhardt, Wolfgang |
| Year of publication: | 1995 |
| Published in: | Chemical Physics Letters ; 237 (1995), 5-6. - pp. 425-431 |
| DOI (citable link): | https://dx.doi.org/10.1016/0009-2614(95)00344-4 |
| Summary: |
Photoelectron spectra of small mass-separated Wn− clusters cooled cooled in a seeding gas are recorded with a low laser flux that ensures single-photon events. The spectra exhibit (i) sharp features due to direct photoemission and (ii) a broad emission signal whose intensity decreases with increasing kinetic energy. The latter is caused by delayed electron emission, a process similar to bulk thermionic emission . The kinetic energy distribution of these electrons can be approximated by a Boltzmann function with a temperature corresponding to the photon energy divided by the number of vibrational degrees of freedom of the cluster.
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| Subject (DDC): | 530 Physics |
| Link to License: | In Copyright |
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WEIDELE, Horst, Dietmar KREISLE, Ekkehard RECKNAGEL, Georg SCHULZE ICKING-KONERT, Haiko HANDSCHUH, Gerd GANTEFÖR, Wolfgang EBERHARDT, 1995. Thermionic emission from small clusters : direct observation of the kinetic energy distribution of the electrons. In: Chemical Physics Letters. 237(5-6), pp. 425-431. Available under: doi: 10.1016/0009-2614(95)00344-4
@article{Weidele1995Therm-4731, title={Thermionic emission from small clusters : direct observation of the kinetic energy distribution of the electrons}, year={1995}, doi={10.1016/0009-2614(95)00344-4}, number={5-6}, volume={237}, journal={Chemical Physics Letters}, pages={425--431}, author={Weidele, Horst and Kreisle, Dietmar and Recknagel, Ekkehard and Schulze Icking-Konert, Georg and Handschuh, Haiko and Ganteför, Gerd and Eberhardt, Wolfgang} }
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