Investigation of diffusion of magnesium in lithium fluoride crystals by the SIMS method

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Abstract

Using secondary ion mass spectroscopy, diffusion of magnesium impurity in lithium fluoride is investigated. A temperature dependence of the magnesium diffusion coefficients within the temperature interval 870-1073 K is established, which is described by an expression of the following type: D = 2.8·10 -3 ·exp(-1.5/kT). Combining the data on self-diffusion of cations with the results of the ion conductivity measurements, estimation is made of the thermodynamic parameters characterizing the jump of a diffusant. The calculated frequencies of the impurity ion jump to the cation vacancy are reported.

Original languageEnglish
Pages (from-to)1190-1194
Number of pages5
JournalRussian Physics Journal
Volume45
Issue number12
Publication statusPublished - 2002

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ASJC Scopus subject areas

  • Physics and Astronomy(all)

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