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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 am also president of the British Crystallographic Association.

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.