| Autor: |
Boris Gorshunov, Anatoliy V. Dukhnenko, A. V. Muratov, Nickolay E. Sluchanko, Gennady A. Komandin, M. A. Belyanchikov, Elena S. Zhukova, Mikhail A. Anisimov, Yuri A. Aleshchenko, N. Y. Shitsevalova, Vladimir V. Voronov, Martin Dressel, V. B. Filipov |
| Rok vydání: |
2019 |
| Předmět: |
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| Zdroj: |
2019 44th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz). |
| DOI: |
10.1109/irmmw-thz.2019.8873936 |
| Popis: |
To understand mechanisms of high thermionic emission of LaB 6 we use infrared spectroscopy, DC resistivity and Hall-effect techniques to study conduction electrons state in LaB6 single crystals with different contents of 10B and 11B isotopes. We find that up to 70% of conduction electrons are strongly non-equilibrium due to involvement in the collective oscillations of electron density coupled to vibrations of Jahn-Teller unstable boron cage and rattling modes of La-ions. We claim that these non-equilibrium electrons determine the extraordinary low work function of thermoemission in LaB 6 . |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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