Structural Studies of Defects, Disorder and Phase Transitions

这个材料物理学的研究项目使用x射线和中子散射方法来解决物质结构中的一系列问题。一方面对原子结构关系感兴趣，另一方面对那些导致重要物理性质的细节感兴趣。主题包括多层中的界面无序，金属、半导体和超导体中的替代无序和有序无序过渡；分子固体中的取向紊乱；结构转变中的位移无序，以及表面对无序和相变的影响。该项目包括计算机建模和仿真，以及与理论家的合作。研究的材料包括准晶体、超导体、富勒烯、氢化钒、具有马氏体转变的金属以及各种金属的多层材料。该研究为x射线、中子、同步加速器x射线和小角x射线散射方法的研究生和博士后提供了良好的培训。由于所研究的材料的广度，学生在材料物理学方面获得了良好的背景，并为一系列科学或技术职业做好了准备。这个材料物理学的研究项目使用x射线和中子来探测许多不同类型材料中的原子排列。任务首先是确定原子在固体中的排列方式，然后确定材料的物理性质如何取决于原子的排列。正在研究的材料包括高tc超导体、金属、富勒烯（巴克球）、半导体、多层金属和半导体。这些实验在很大程度上依赖于计算机建模和模拟，以及与理论家的互动。该研究为x射线、中子、同步加速器x射线和小角x射线散射方法的研究生和博士后提供了良好的培训。由于所研究的材料的广度，学生在材料物理学方面获得了良好的背景，并为一系列科学或技术职业做好了准备。

Moss9729297This research project in materials physics employs x-ray and neutron scattering methods to address a range of problems in the structure of matter. The interest on the one hand is with atomic structure relationships, and on the other with those details that lead to important physical properties. Topics include interfacial disorder in multilayers, replacive disorder and order-disorder transitions in metals, semiconductors and superconductors; orientational disorder in molecular solids; displacive disorder in structural transitions, and the effects of surface on disorder and phase transitions. The project includes computer modeling and simulation, and collaborations with theorists. Materials under study include quasicrystals, superconductors, fullerenes, vanadium hydrides, metals with martensitic transitions, and multilayers of various metals. The research provides excellent training for graduate students and post-doctoral associates in x-ray, neutron, synchrotron x-ray and small angle x-ray scattering methods. Because of the breadth of materials under study, students receive an excellent background in materials physics and are prepared for a range of scientific or technical careers.%%% This research project in materials physics uses x-rays and neutrons to probe atomic arrangements in many different types of materials. The task is first to determine how the atoms are arrange in the solids and then to determine how the physical properties of the materials depend on the atomic arrangements. The materials under study include high-Tc superconductors, metals, fullerenes (bucky-balls), semiconductors, and multilayers of metals and semiconductors. The experiments depend strongly on computer modeling and simulation, and interaction with theorists. The research provides excellent training for graduate students and post-doctoral associates in x-ray, neutron, synchrotron x-ray and small angle x-ray scattering methods. Because of the breadth of materials under study, students receive an excellent background in materials physics and are prepared for a range of scientific or technical careers.