Open AccessЭлектронная структура вариантов составов скандатных и оксидно-никелевых катодов СВЧ приборов
Author(s) -
В.И. Капустин,
И.П. Ли,
А.С. Серпичев,
А.В. Шуманов,
Н.Е. Кожевникова
Publication year - 2022
Publication title -
žurnal tehničeskoj fiziki
Language(s) - English
Resource type - Journals
eISSN - 1726-748X
pISSN - 0044-4642
DOI - 10.21883/jtf.2022.03.52143.211-21
Subject(s) - scandium , materials science , fermi level , thermionic emission , electronic structure , analytical chemistry (journal) , barium , spectroscopy , barium oxide , valence (chemistry) , cathode , oxide , x ray photoelectron spectroscopy , electron , atomic physics , chemistry , condensed matter physics , physics , nuclear magnetic resonance , organic chemistry , chromatography , quantum mechanics , metallurgy
By methods of electron spectroscopy for chemical analysis and spectroscopy of characteristic losses of electron energy, the electronic structure of barium oxide crystallites doped with other chemical elements, including scandium from scandium-containing phases, was investigated. The physical and physicochemical conditions are formulated, the fulfillment of which allows to form the electronic structure of the scandate cathode with a high level of thermionic emission: the achievement of the minimum ratio of the surface volume concentration of oxygen vacancies and the maximum distance between the top of the valence band and the Fermi level.