U.S.-Czech Materials Research on Low-Dimensional Electronic Systems in Semiconductors

INT 9602140麦克唐纳这个由印第安纳大学布鲁明顿分校的艾伦·麦克唐纳博士和捷克物理研究所的帕维尔·斯特雷达博士合作的美国-捷克材料研究项目，将以与低维电子系统相关的基础物理学为特色。具体地说，研究人员将通过聚焦于零磁场和倾斜磁场中的双层系统来研究多层电子系统的平衡和输运性质。这项合作工作将建立在平面间传输理论的基础上，因为美国-捷克团队试图定义层间关联如何反映电荷在观察到耦合效应的两层之间的分配方式。这些结果有望导致确定受面内磁场作用的多层体系的电子结构，并有助于建立一种理论，描述在平行于或倾斜于层平面的磁场存在的情况下的面内输运。这种关于磁阻的新知识可能会被证明对制造半导体器件很有用。这个材料研究理论项目通过使美国和东欧的专家能够结合互补的人才并在相互感兴趣和能力很强的领域共享研究资源，实现了促进科学知识的计划目标。?？

INT 9602140 MacDonald This U.S.-Czech materials research project between Dr. Allan MacDonald of Indiana University, Bloomington, and Dr. Pavel Streda of the Czech Institute of Physics will feature the basic physics associated with low-dimensional electron systems. Specifically, the researchers will study equilibrium and transport properties of multi-layer electron systems by focussing on double-layer systems in zero and tilted magnetic fields. The collaborative effort will build upon theories of inter-plane transport as the U.S.-Czech team attempts to define how the inter-layer correlations reflect the way the charge is partitioned between two layers where coupling effects are observed. Results are expected to lead to a determination of the electronic structure of multi-layer systems subjected to in-plane magnetic fields and to contribute to a theory that can describe in-plane transport in the presence of a magnetic field, applied parallel to or tilted from the layer plane. Such new knowledge of magnetoresistance may prove useful in fabricating semiconductor devices. This project in materials research theory fulfills the program objective of advancing scientific knowledge by enabling experts in the United States and Eastern Europe to combine complementary talents and share research resources in areas of strong mutual interest and competence. ??