Structural Studies of Defects, Disorder and Phase Transitions

包括准晶体、富勒烯和高温超导体在内的一系列材料的结构特性将通过x射线和中子衍射实验进行研究。该项目还将包括衍射工作的计算机建模和模拟，以及支持该项目的理论合作。准晶体工作将集中在合金上，并将提供有关缺陷和无序性质的数据，包括用于解释这些材料的平铺图案的波动。富勒烯的动态结构性质将被研究。一个进一步的项目涉及结构研究，使用凝视角x射线散射来研究金属合金的相变，这些相变始于表面。这种转变包括马氏体相变等。

The structural properties of a range of materials, including quasicrystals, fullerenes, and high-temperature superconductors will be investigated by x-ray and neutron diffraction experiments. The project will also include computer modelling and simulation of diffraction work, as well as theoretical collaborations in support of the project. The quasicrystal work will focus on alloys and will provide data on the nature of defects and disorder, including fluctuations in the tiling patterns invoked to interpret these materials. Dynamic structural properties of fullerenes will be investigated. A further project involves structural investigations using gazing angle x-ray scattering to investigate phase transitions in metallic alloys which are initiated at the surface. Such transformations include martensitic phase transitions among others.