Theory of Electronic Transport in Disordered Materials

9510185 Belitz这个项目的目的是提高目前的理解凝聚态系统，受到淬火无序。 要研究的具体系统包括量子铁磁体，无规场中的磁体，无序超导体和掺杂半导体，以及其他经历金属-绝缘体转变的系统。 他所使用的方法包括有效场论、重整化群技术和多体微扰理论的构建。 该项目的成功完成将有助于了解凝聚态物理学的一个重要领域，并将培养具有这一领域专门知识的技术人员。 %该项目涉及各种材料，例如金属相和绝缘相之间的过渡材料。 这种材料已经冻结了某种类型的缺陷，如果它们的存在足够强，这些缺陷将使材料绝缘。 例子包括磁体、超导体、半导体和金属，每种都有一种或多种特殊类型的缺陷。 通常，缺陷被故意引入材料中以赋予它们所需的特性。 PI将使用最先进的理论方法来研究这些现象。 PI与T. R.来自马里兰州大学的柯克帕特里克。 ***

9510185 Belitz The objective of this project is to enhance the current understanding of condensed matter systems that are subject to quenched disorder. Specific systems to be studied include quantum ferromagnets, magnets in random fields, disordered superconductors, and doped semiconductors, as well as other systems that undergo a metal-insulator transition. The methods that he uses include the construction of effective field theories, renormalization group techniques, and many-body perturbation theory. A successful completion of the project will contribute to the understanding of an important area of condensed matter physics and will train technical personnel with expertise in this field. %%% The project deals with a variety of materials, such as those with a transition between metallic and insulating phase. Such materials have frozen into them defects of some type that will make the material insulating if their presence is sufficiently strong. Examples include magnets, superconductors, semiconductors, and metals, each with one or more special type of defects. Often, defects are intentionally introduced into materials to give them desired properties. The PI will use state-of-the-art theoretical methods to study such phenomena. The PI carries on a fruitful collaboration with T. R. Kirkpatrick from the University of Maryland. ***