Dr. Scott has a background in condensed matter physics with expertise in the design and fabrication of nanoscale semiconductor devices and micromagnetic structures that serve as tunable models for probing complex electronic and magnetic interactions. He has extensive experience investigating charge transport at cryogenic temperatures in nanostructured devices allowing for the study of strongly interacting charge carriers responsible for novel material properties such as superconductivity.
Dr. Scott has worked with several different custom designed cryogenic systems, including Helium-4, Helium-3, and dilution refrigerators, while employing a variety of transport characterization techniques including AC and DC transport, magnetoresistance, pulse spectroscopy, and differential conductance using lock-in detection. He is also experienced with related equipment including superconducting magnets, helium leak detectors, and vacuum systems incorporating diffusion, turbo, sublimation, mechanical, and cryo pumps. He is highly skilled with data acquisition via data flow programming and quantitative data analysis techniques, and he has worked extensively with finite-element based modeling for micromagnetic simulations.
Prior to joining Exponent, Dr. Scott worked as a research scientist at Nokia Bell Laboratories where he was a principal investigator for a low temperature experimental research effort involving highly correlated electron states leading to collective effects (e.g. Kondo effect and phase transitions) in magnetic nanosctrucutres. He additionally advised management on quantum computing methodologies and quantum information processing applications aligned with their business strategies.
Dr. Scott worked as a postdoctoral research scientist at Rice University after receiving his Ph.D. in physics at UCLA where he studied charge transport in metallic nanogap devices, single molecule transistors, and electrostatically defined semiconductor quantum dots. He has gained broad practical experience with a large range of semiconductor and nanofabrication processing techniques including electron beam and UV lithography, thin film metallization, and wet and dry etching processes. He also has considerable experience with a variety of characterization techniques including SEM, AFM, and STM.
CREDENTIALS & PROFESSIONAL HONORS
- Ph.D., Physics, University of California, Los Angeles (UCLA), 2007
- M.S., Physics, University of California, Los Angeles (UCLA), 2001
- B.S., Physics, University of California, Santa Barbara, 2000
W. M. Keck Postdoctoral Fellowship, 2007, 2008, 2009
Scott GD, Hu T-C. Gate-controlled kondo effect in a single-molecule transistor with elliptical ferromagnetic electrodes. Physical Review B 2017; 96:144416.
Scott GD, Hu T-C. Controlled Electrode Magnetization Alignment in Planar Elliptical Ferromagnetic Break Junction Devices. Journal of Applied Physics 2016; 120:164311.
Scott GD. Electrode Design for Antiparallel Magnetization Alignment in Nanogap Devices. IEEE Transactions on Magnetics 2016; 52:9600104.
Arvidson RS, Fischer C, Sawyer DS, Scott GD, Natelson D, Lüttge A. Lateral Resolution Enhancement of Vertical Scanning Interferometry by Sub-Pixel Sampling. Microscopy and Microanalysis, 2014; 20:90-98.
Scott GD, Natelson D, Kirchner S, Muñoz E. Transport Characterization of Kondo-Correlated Single Molecule Devices. Physical Review B 2013; 87:241104(R).
Scott GD, Natelson D. Kondo Resonances in Molecular Devices. ACS Nano 2010; 4:3560–3579.
Scott GD, Palacios JJ, Natelson D. Anomalous Transport and Possible Phase Transition Palladium Nanojunctions. ACS Nano 2010; 4:2831–2837.
Scott GD, Keane ZK, Ciszek JW, Tour JM, D. Natelson D. Universal Scaling of Nonequilibrium Transport in the Kondo Regime of Single Molecule Devices. Physical Review B, 2009; 79:165413.
Jiang HW. Yablonovitch E, Xiao M, Sakr MR, Scott GD, E. T. Croke ET. Single Electron Spin Measurements in Si-Based Semiconductor Nanostructures, chapter in book entitled Electron Spin Resonance and Related Phenomena in Low Dimensional Structures Fanciulli M, Editor, Springer-Verlag, TAP series 2009; 115.
Ward DR, Scott GD, Keane ZK, Halas NJ, Natelson D. Electronic and Optical properties of Electromigrated Molecular Junctions. Journal of Physics: Condensed Matter 2008; 20:374118.
Zhang XC, Scott GD, Jiang HW. NMR Probing Spin Excitations in the Ring Structure of a Two-Subband System. Physical Review Letters 2007; 98:246802.
Scott GD, Xiao M, Croke ET, Yablonovitch E, Jiang HW. Sputtered Gold as an Effective Schottky Gate for Strained Si/SiGe Nanostructures. Applied Physics Letters 2007; 90:032110.
Scott GD, Chichak K, Peters A, Cantrill SJ, Stoddart JF, Jiang HW. Mechanism of Enhanced Rectification in Unimolecular Borromean Ring Devices. Physical Review B 2006; 74:113404.
Scott GD, Natelson D, Kirchner S, Muñoz E. Transport characterization of Kondo-correlated single molecule devices, Invited Presentation, Max Planck Institute for the Physics of Complex Systems, Dresden, Germany, 2013.
Scott GD, Hu T-C. Kondo-correlated transport in single molecule ferromagnetic break junction devices with controllable electrode magnetization alignment, Contributed Presentation, March Meeting of the American Physical Society, Baltimore, MD, 2016.
Scott GD, Natelson, D. Conductance scaling and Kondo correlations in single molecule transistors, Contributed Presentation, March Meeting of the American Physical Society, Boston, MA, 2012.
Unites States Patent 9852833: Magnetization alignment in a thin-film device, 2017.
Research Scientist/Member of Technical Staff, Bell Labs, 2010-2017
Postdoctoral Research Fellow, Rice University, 2007-2010
Journal of the American Chemical Society (JACS)