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This group combines diffuse X-ray scattering methods with computer simulation to deduce the arrangement of atoms and molecules in disordered crystals. Conventional crystal structure determination reveals only averaged arrangements, inadequate to explain some of the basic properties of many minerals, inorganic compounds, organic compounds and alloys that exhibit crystalline disorder. Diffuse scattering gives information on how neighbouring atoms or molecules interact with each other. This research group has strong connections with Darren Goossen's (former research fellow) Structure and Magnetism of Materials Research Group.
Richard Welberry graduated from the University of Cambridge with a M.A. and received his PhD from University College London.
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We have developed an atom-based Monte Carlo simulation model that gives rise to a nanoscale polar domain structure as envisaged to occur in PbZn1/3Nb2/3O3 (PZN) and similar relaxor ferroelectric materials.
More about Chemical Origin of Nanoscale Polar Domains in PbZn1/3Nb2/3O3
Pentachloronitrobenzene, C6Cl5NO2, (PCNB) is one of a series of chloronitrobenzene derivatives that are currently being studied because their disordered nature and propensity to undergo phase transitions are thought to be responsible for their anomalous dielectric properties.
Polymorphism is of key importance in the pharmaceutical industry since the properties of different polymorphs of the same compound may differ considerably e.g. the rate of uptake of pharmaceutical molecules by the human body is often strongly dependent on which polymorphic form of the material is present.
More about The Influence of Disorder on Polymorphism in Pharmaceuticals