Isothermal Diffusion in a Medium with Traps

Diffusion of impurity atoms in a crystal containing traps is considered. Time dependence of the impurity stream at the border can take the form of a peak under certain conditions. Formulas connecting the time coordinate of the peak with the frequencies of the diffusing atom jumps as well as the asym...

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Bibliographic Details
Published inRussian physics journal Vol. 57; no. 8; pp. 1086 - 1093
Main Authors Naimi, Е. K., Suprun, I. Т.
Format Journal Article
LanguageEnglish
Published Boston Springer US 01.12.2014
Springer
Subjects
Condensed Matter Physics
Hadrons
Heavy Ions
Lasers
Mathematical and Computational Physics
Nuclear Physics
Optical Devices
Optics
Photonics
Physics
Physics and Astronomy
Theoretical
peak of the time dependence of the impurity stream
diffusion
the medium with traps
gas emission
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Summary:Diffusion of impurity atoms in a crystal containing traps is considered. Time dependence of the impurity stream at the border can take the form of a peak under certain conditions. Formulas connecting the time coordinate of the peak with the frequencies of the diffusing atom jumps as well as the asymptotic expressions for the initial and final time sections of the stream and for the quantity of allocated impurities are obtained. The obtained formulas can be used to determine the parameters of the diffusion kinetics using the time dependence of the gas emission rate.
ISSN:1064-8887
1573-9228
DOI:10.1007/s11182-014-0347-y