Theory of Electronic, Magnetic and Transport Properties of Nanoscale Magnetic Junctions

这个理论项目探讨了纳米级磁性结的电子、磁性和输运性质的基本物理学。 主要重点是纳米结中的自旋极化电子输运，其中放置少量各种金属、半导体或绝缘材料作为两个铁磁纳米线之间的接触。 第一性原理密度泛函计算将被用来预测这些纳米结的电子、磁性和输运特性。 微磁模型将用于理解纳米接触的磁结构，紧束缚模型将被开发用于处理无序系统，并探索磁隧道结中局域态对磁输运的影响。 这些理论研究将指导实验研究的纳米结制造的国家的最先进的纳米纤维技术和willComplement在内布拉斯加州建立的实验计划。 这项研究将促进新型磁电子器件的发展，这种器件将自旋自由度与电子纳米技术结合起来。这个理论项目探讨了纳米级磁性结的电子，磁性和传输特性的基本物理学。 主要的重点是在纳米结的自旋极化电子输运。 这些理论研究将指导通过最先进的纳米纤维技术制造的纳米结的实验研究，并将补充内布拉斯加州的既定实验计划。

This theoretical project explores the fundamental physics of electronic, magnetic andTransport properties of nanoscale magnetic junctions. The major emphasis is on spin-Polarized electronic transport in the nanojunctions, in which a small amount of variousMetallic, semiconducting or insulating materials is placed as a contact between twoFerromagnetic nanowires. First-principles density functional calculations will bePerformed to predict electronic, magnetic and transport chacteristics of theseNanojunctions. Micromagnetic modeling will be used to understand the magneticStructure of nanocontacts and tight-binding models will be developed to tread disorderedSystems and to explore the influence of localized states on magnetotransport in magneticTunnel junctions. These theoretical studies will guide experimental investigations of the Nanoscale junction fabricated by state-of-the-art nanofabrication techniques and willComplement the established experimental program at Nebraska. The research willFacilitate the development of novel magnetoelectronic devices, which merge spin degreesOf freedom into electronic nanotechnologies.%%%This theoretical project explores the fundamental physics of electronic, magnetic and Transport properties of nanoscale magnetic junctions. The major emphasis is on spin-Polarized electronic transport in the nanojunctions. These theoretical studies will guideExperimental investigations of the nanoscale junction fabricated by state-of-the-artNanofabrication techniques and will complement the established experimental program atNebraska.***