NSF Young Investigator

技术摘要：原子尺度结构将在金属和半导体表面上制造和研究。这些结构将使用液氦冷却的超高真空扫描隧道显微镜(STM)逐个原子地构建。STM室将容纳表面分析工具、薄膜外延设备和1特斯拉磁铁。原子操纵、成像和光谱学的综合能力将使人们能够研究纳米尺度物体的电子结构和输运性质。将对设备的应用潜力进行评估。非技术摘要：将使用低温扫描隧道显微镜(STM)构建和研究纳米级结构。该结构将通过使用STM的尖端沿导电表面滑动单个原子来构建。微观结构将在不同的条件下进行研究，例如在流动电流或磁场中。固态现象将在尽可能小的长度尺度上进行研究，以及在设备应用方面的潜力。

Technical abstract: Atomic scale structures will be fabricated and studied on metal and semiconducting surfaces. The structures will be built atom by atom using a liquid helium cooled, ultra-high vacuum scanning tunneling microscope (STM). The STM chamber will house surface analytic tools, thin film epitaxi equipment, and a 1 Tesla magnet. The combined abilities of atomic manipulation, imaging, and spectroscopy will allow study of the electronic structure and transport properties of nanometer scaled objects. Potentials for device application will be evaluated. Non-technical abstract: Nanometer scale structures will be built and studied using a low temperature scanning tunneling microscope (STM) The structures will be built by sliding individual atoms along a conducting surface using the tip of an STM. The microscopic structures will be studied under various conditions, such as in the presence of a flowing current or in a magnetic field. Solid state phenomena will be studied at the smallest possible length scales, as well as the potential for device applications.