David Keen

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David Keen

Visiting Professor

I am a senior research scientist at the ISIS neutron facility, Rutherford Appleton Laboratory. I am particularly linked with those working with neutron scattering and muon spectroscopy within the department. Further details about my work may be found on my web-pages here.

I was president of the British Crystallographic Association between 2012 and 2015.

My main research interest is in the nature of structural disorder in materials and how these local features effect a material's properties. Recent work is concerned with understanding how local disorder influences negative thermal expansion, drives solid-state amorphization (both pressure and temperature induced) and degrades piezoelectric properties. Total scattering, both from neutron and x-ray diffraction, is the major experimental method that I employ, together with extensive use of the reverse Monte Carlo (RMC) modelling technique. I have been heavily involved in the development of both techniques, particularly when applied to crystalline materials.

Some of this research was published in Nature under the title "The Crystallography of Correlated Disorder" (Keen and Goodwin, Nature 521 303-309 (2015))