Ab initio study of the crystal and electronic structure of mono- and bi-alkali antimonides: Stability, Goldschmidt-like tolerance factors, and optical properties

J. K. Nangoi, M. Gaowei, A. Galdi +4

Mono- and bi-alkali antimonides, X${}_2$YSb (X and Y from Group I), are promising for next-generation electron emitters due to their capability of producing high-quality electron bea…