The special features of the formation of molecular ions on the surface of tantalum

Autor:	O. Ya. Savchenko
Rok vydání:	2010
Předmět:	Surface (mathematics) Condensed Matter::Materials Science chemistry Astrophysics::High Energy Astrophysical Phenomena Tantalum Analytical chemistry chemistry.chemical_element Thermal emission Physical and Theoretical Chemistry Atomic physics Oxygen Ion
Zdroj:	Russian Journal of Physical Chemistry B. 4:521-525
ISSN:	1990-7923 1990-7931
DOI:	10.1134/s1990793110030255
Popis:	Thermal emission of singly charged positive molecular ions, mass 254, from the surface of a tantalum band was studied. Thermal emission appeared if, first, oxygen acted on a tantalum band at a temperature higher than 600°C, and then the band was held at room temperature. At the time of holding t longer than a minute, thermal emission linearly depended on \( \sqrt t \). The special features of thermal emission were explained by the presence of a critical temperature of tantalum close to 400°C, at which all the molecular ions were emitted from the surface. A new model of their formation was suggested.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::809a1b46e927ae4189b5d9f4e60485ec https://doi.org/10.1134/s1990793110030255 Zobrazit plný text záznamu Full text from SpringerLink