The influence of chromium dopant of transport properties of [alfa]-MnS

• Autorzy: Gilewicz-Wolter J. , Grzesik Z. , Wolter M. , Dąbek J. , Dudała J.
• Języki publikacji: EN

Abstrakty

EN

The influence of chromium on self-diffusion of cations in metal-deficit man-ganous sulphide, Mn1_yS, has been studied as a function of temperature and sulphur activity, using radio-tracer technique. It has been found that the rate of Mn self-diffusion in chromium doped Mn1_yS is higher than that in pure manganous sulphide and does not depend on equilibrium sulphur pressure. In addition, the activation energy of self-diffusion in Mn1_yS-Cr2S3 solid solution is lower than that in pure Mn1_yS. Both these results are in agreement with theoretical predictions based on simple defect model in Mn1_yS, assuming that the predominant defects in this sulphide are non-interacting, doubly ionized cation vacancies and electron holes.

Słowa kluczowe

EN

sulpides; point defect; doping

PL

siarczek; defekt punktowy; domieszkowanie

• Wydawca: Centrum Upowszechniania Nauki PAN
• Czasopismo: Bulletin of the Polish Academy of Sciences. Chemistry
• Rocznik: 2003
• Tom: Vol. 51, No. 2
• Strony: 127--134
• Opis fizyczny: Bibliogr. 12 poz.

Twórcy

autor

Gilewicz-Wolter J.

autor

Grzesik Z.

autor

Wolter M.

autor

Dąbek J.

autor

Dudała J.

• Faculty of Physics and Nuclear Techniques, University of Minning and Metallurgy, al. Mickiewicza 30, 30-059 Kraków, Poland (Wydział Fizyki i Techniki Jądrowej, Akademia Górniczo-Hutnicza)