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

这项由材料研究仪器项目颁发的奖项支持加州大学河滨分校的仪器开发。在低温(300MK)、强磁场(10Tesla)、超高真空条件(10-11Torr)和分辨率低于十分之一纳米的条件下探测物质的能力，推动了我们理解物质细节的能力的极限，这是迄今为止不可能的。具有这些能力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，还可以在纳米尺度上探测电子的自旋，从而使人们能够理解纳米磁性。该显微镜的发展包含了广泛的实验技术，因此为本科生、研究生和博士后助理的教育和培训提供了宝贵的机会。这些技术和通过显微镜实现的科学将被整合到一门关于纳米科学的新课程中。据设想，该显微镜将作为合作研究的中心，涉及纳米级现象的调查，并将来自不同学科的研究人员聚集在一起。该仪器影响着广泛的科学研究，包括单分子光谱、纳米催化、表面和界面磁性、纳米线以及碱金属薄膜上的低温流体行为。纳米技术的进步关键取决于能够探测纳米尺度物体的仪器。在这方面，Binnig和Rohrer在1981年发明的扫描探针显微镜在原子和分子尺度上对材料的理解取得了快速进展，发挥了核心作用。为了更详细地探测和了解该系统迄今无法观察到的特性，需要开发新的仪器。这项由材料研究仪器计划颁发的奖项支持加州大学开发一种新的更强大的显微镜。这种新型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。这种仪器的开发为这一关键科学技术领域的本科生和研究生以及博士后助理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。拟议中的仪器的独特能力将允许来自不同学科的研究人员在纳米级问题上合作。纳米技术自然而然地把各种各样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的变化组成的，涉及到原子和分子的转变。

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.