Bulletin of the American Physical Society
APS March Meeting 2018
Volume 63, Number 1
Monday–Friday, March 5–9, 2018; Los Angeles, California
Session V32: Joseph F. Keithley and Industrial Physics AwardsIndustry Invited Prize/Award Undergraduate
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Sponsoring Units: GIMS FIAP Chair: Ichiro Takeuchi, Univ of Maryland-College Park Room: LACC 408A |
Thursday, March 8, 2018 2:30PM - 3:06PM |
V32.00001: Joseph F. Keithley Award For Advances in Measurement Science Talk: Development of Scanning Probe Instruments and Application to the Graphene 2D Electron System Invited Speaker: Joseph Stroscio The invention of the scanning tunneling microscope ushered in the nanoscience revolution with the ability to “see atoms” in imaging surfaces. With the spread of the first initial ultra-high vacuum instruments in the first few years, the STM as an electronic structure tool quickly followed by tunneling spectroscopy measurements demonstrating that the observed atomic corrugation represents electronic wavefunctions maps, and that the tunneling spectrum would measure the energy resolved local density of states [1,2]. The quest for higher energy resolution in electronic spectra measurements drove the development of cryogenic scanning probe systems, starting at liquid He temperatures of 4 K, and then following a path to lower and lower temperatures, with a decade of development for almost each major advance. Today, scanning probe instruments can operate routinely at mK temperatures [3]. In this presentation, I will review some of these developments, including our recent efforts to combine STM together with atomic force and transport measurements at mK temperatures. Applications of tunneling spectroscopy to the graphene 2D electron system, ranging from fractional Landau levels [4] to graphene quantum dots [5] will be used as illustrations. |
Thursday, March 8, 2018 3:06PM - 3:42PM |
V32.00002: Joseph F. Keithley Award For Advances in Measurement Science Talk: STM Inelastic Electron Tunneling Spectroscopy and Microscopy Invited Speaker: Wilson Ho Inelastic electron tunneling in a scanning tunneling microscope (STM) provides a unique way to measure and image the excitation of an atom or molecule adsorbed on a solid surface with sub-Ångstróm resolution. Inelastic electron tunneling spectroscopy (IETS) and microscopy was first reported in 1998 for the detection of vibrational excitation in a single molecule and has since been extended to the excitation of a single electron spin and the rotation of a single molecule. This talk illustrates by three examples the use of STM-IETS to image the nature of the chemical bond in molecular structure and intermolecular interactions, spin-vibration coupling in single molecule magnetism, and single molecule vibration and dynamics in the time domain. |
Thursday, March 8, 2018 3:42PM - 4:18PM |
V32.00003: From Inelastic Tunneling Spectroscopy to Electron Spin Resonance of single atom spins on a surface Invited Speaker: Andreas Heinrich The scanning tunneling microscope is an amazing tool because of its atomic-scale spatial resolution. This can be combined with the use of low temperatures, culminating in precise atom manipulation and spectroscopy with microvolt energy resolution. In this talk I will apply these techniques to the investigation of the quantum spin properties of transition metal atoms on surfaces and will focus on some of the technical aspects of these techniques. |
Thursday, March 8, 2018 4:18PM - 4:54PM |
V32.00004: Distinguished Lectureship on the Applications of Physics Talk: mK to km: How Millikelvin Physics is Reused to Explore the Earth Kilometers Below the Surface Invited Speaker: Robert Kleinberg Investigations of the superfluid phases of liquid helium-3 would seem to have little application to the study of rock formations thousands of meters below the surface of the earth. However, the physicist’s tool box is versatile, and techniques used in one field of study can be reused, with appropriate adaptation, in very different circumstances. |
Thursday, March 8, 2018 4:54PM - 5:30PM |
V32.00005: George E. Pake Prize Talk: An Ecosystem Approach to Industrial Physics: Atmospheric Moisture Harvesting Through High Temperature Plasma Surface Modification, A Case Study Invited Speaker: Richard Boudreault The goal of industrial physics is solve problems through promoting elegant highly abstract ideas in research from bench-top conception in laboratories to marketable commercial products. In this paper, we propose a systemic work flow based on a robust ecosystem of university scientists, industrial experts, and engineering teams centered around innovative ideas. The underlying strategy is to effectively incorporate applied research findings into engineering practices and to commercialize the resulting products. This approach has been utilized successfully in twelve high-tech start-ups over the past forty years ranging from time-domain nanosecond laser molecular imagery to quantum computing. As a working example, we present one of our latest venture towards addressing a significant global issue, access to freshwater, via atmospheric moisture harvesting. |
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