University of Cambridge > Talks.cam > Electronic Structure Discussion Group > Bulk diffusion in alumina: solving the corundum conundrum

Bulk diffusion in alumina: solving the corundum conundrum

Add to your list(s) Download to your calendar using vCal

If you have a question about this talk, please contact Neil Drummond.

I will present ab initio determinations of diffusion coefficients for native defects in alumina (Al2O3), which provide resolution to long-standing questions about the nature of transport in corundum-structure materials. I will demonstrate the important role played by aliovalent impurity dopants, which act to “buffer” concentrations of native defects through the formation of clusters of native defects and substitutional impurities, explaining the remarkably small changes in bulk diffusion constants upon aliovalent doping.

Download slides (PDF)

This talk is part of the Electronic Structure Discussion Group series.

Tell a friend about this talk:

This talk is included in these lists:

Note that ex-directory lists are not shown.

 

© 2006-2017 Talks.cam, University of Cambridge. Contact Us | Help and Documentation | Privacy and Publicity