Zum inneren lichtelektrischen Effekt (Quantensprungabsorption) im Alkalimetall Kalium

Autor:	H. Mayer, M. H. El Naby
Rok vydání:	1963
Předmět:	Photoexcitation Nuclear and High Energy Physics Wavelength Materials science chemistry Potassium Valency Analytical chemistry chemistry.chemical_element Electron Photoelectric effect Alkali metal Absorption (electromagnetic radiation)
Zdroj:	Zeitschrift f�r Physik. 174:289-295
ISSN:	1434-601X 1434-6001
Popis:	The results of new measurements of the optical constantsn andk of the alkali metalK, performed in ultrahigh vacuum on mirrorlike surfaces free of any contamination and distortion in the wavelength region from 0·365 μ to 2 μ at temperatures between −183° C and +85° C permit to separate the absorption due to interband transitions (photoexcitation of valency electrons) from the “classical absorption” solely considered in Drude's theory of the optical constants of metals. Thus, it is possible to determine the “internal photoelectric effect” of the alkali metal potassium as a function of wavelength, espically its threshold frequency which corresponds to a wavelengthλ th=2·1 μ (hν th=0·59 eV).
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::b116c6ed5133cb9dcef51ff6110a52bd https://doi.org/10.1007/bf01381661 Zobrazit plný text záznamu