Development of a 300 mK-10 Tesla Scanning Tunneling Microscope for Nanoscience Research and Education

开发用于纳米科学研究和教育的 300 mK-10 Tesla 扫描隧道显微镜

• 批准号: 0114246
• 负责人: Wilson Ho
• 金额: $ 28万
• 依托单位: University of California-Irvine
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2001
• 资助国家: 美国
• 起止时间: 2001-10-01 至 2005-03-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0114246&HistoricalAwards=false
• 关键词: Development; 300; mK; 10; Tesla

This award from the Instrumentation for Materials Research program supports instrument development at the University of California Riverside. The ability to probe matter at low temperatures (300 mK), high magnetic fields (10 Tesla), under ultrahigh vacuum conditions (10-11 Torr), and with resolution below a tenth of a nanometer pushes back the limits of our ability to understand matter in details not hitherto possible. The development of a scanning tunneling microscope with these capabilities allows controlled imaging, manipulation, spectroscopic characterization, and chemical modification of individual atoms and molecules. In addition to the charge, the spin of the electrons can be probed at the nanoscale, enabling an understanding of nanomagnetism. The development of this microscope encompasses a wide range of experimental techniques, thus providing valuable opportunities for education and training of undergraduate and graduate students and postdoctoral associates. These techniques and the science made possible by the microscope will be integrated into a new course on nanoscience. It is envisioned that the microscope will serve as a centerpiece for collaborative research involving the investigation of nanoscale phenomena and bring together researchers from different disciplines. The instrument impact broad scientific research which include single molecule spectroscopy, nanocatalysis, surface and interface magnetism, nanowires, and cryogenic fluid behavior on alkali metal film.The advancement of nanotechnology depends critically on instrumentation which can be used to probe objects having nanometer dimensions. In this regard, the invention of the scanning probe microscope in 1981 by Binnig and Rohrer has played a central role in the rapid advances which have been made in the understanding of materials at the atomic and molecular scales. The desire to probe in ever greater details and to access hitherto unobservable properties of the system requires the development of new instrumentation. This award from the Instrumentation for Materials Research program supports the development of a new more powerful microscope at the University of California. The new microscope will make it possible to probe nanometer objects whose behavior can only be revealed at minus 273 degrees Celsius and at magnetic fields two hundred thousand times greater than the earth field. The development of such an instrumentation provides unique opportunities for the education and training of undergraduate and graduate students and postdoctoral associates in this critical field of science and technology. In addition, activities surrounding this development will be integrated into the teaching curriculum in the form of a new course on nanoscience. The unique capabilities of the proposed instrumentation will allow researchers from different disciplines to work together on nanoscale problems. Nanotechnology naturally pulls together a wide range of scientists and engineers since everything around us are made from and involve the transformation of atoms and molecules.

该奖项来自材料研究计划的仪器，支持加州大学滨江的仪器开发。在低温（300 mK）、高磁场（10 Tesla）、超真空条件（10-11 Torr）下探测物质的能力，以及分辨率低于十分之一纳米的能力，推动了我们迄今为止无法详细了解物质的能力的极限。 具有这些功能的扫描隧道显微镜的开发允许对单个原子和分子进行受控成像、操纵、光谱表征和化学修饰。 除了电荷之外，电子的自旋也可以在纳米尺度上探测，从而使人们能够理解纳米磁性。 这种显微镜的发展包括广泛的实验技术，从而为本科生和研究生以及博士后的教育和培训提供了宝贵的机会。 这些技术和显微镜所带来的科学将被整合到一门新的纳米科学课程中。 据设想，显微镜将作为一个核心的合作研究，涉及纳米现象的调查，并汇集来自不同学科的研究人员。 该仪器对单分子光谱学、纳米催化、表面和界面磁性、纳米线以及低温流体在碱金属薄膜上的行为等广泛的科学研究产生了影响。 在这方面，Binnig和Rohrer于1981年发明的扫描探针显微镜在原子和分子尺度上理解材料的快速进步中发挥了核心作用。想要探测更详细的信息，并获得迄今为止无法观察到的系统特性，需要开发新的仪器。 该奖项来自材料研究计划的仪器，支持加州大学开发一种新的更强大的显微镜。新的显微镜将使探测纳米物体成为可能，这些物体的行为只能在零下273摄氏度和比地球磁场大20万倍的磁场下才能被揭示。这种仪器的开发为本科生和研究生以及博士后研究员在这一关键科学技术领域的教育和培训提供了独特的机会。 此外，围绕这一发展的活动将以纳米科学新课程的形式纳入教学课程。拟议的仪器的独特功能将允许来自不同学科的研究人员共同研究纳米级问题。 纳米技术自然地将广泛的科学家和工程师聚集在一起，因为我们周围的一切都是由原子和分子构成的，并涉及原子和分子的转化。