Now showing items 1-16 of 16

    • Analysis of Scanned Probe Images for Magnetic Focusing in Graphene 

      Bhandari, Sagar; Lee, Gil-Ho; Kim, Philip; Westervelt, Robert M. (Springer Nature, 2017)
      We have used cooled scanning probe microscopy (SPM) to study electron motion in nanoscale devices. The charged tip of the microscope was raster-scanned at constant height above the surface as the conductance of the device ...
    • Coherent scattering in two dimensions: graphene and quantum corrals 

      Barr, Matthew Christopher (2014-02-25)
      Two dimensional electronic materials provide a vibrant area for applying basic quantum mechanics and scattering theory. In quantum corrals, multiple scattering leads to resonances closely approximating eigenstates of an ...
    • Direct Graphene Growth on Insulator 

      Lippert, Gunther; Dabrowski, Jarek; Lemme, Max; Marcus, Charles Masamed; Seifarth, Olaf; Lupina, Grzegorz (Wiley, 2011)
      Fabrication of graphene devices is often hindered by incompatibility between the silicon technology and the methods of graphene growth. Exfoliation from graphite yields excellent films but is good mainly for research. ...
    • Electric Transport in Hybrid Carbon Nanotube-Graphene Devices 

      Cheng, Austin Kcon (2019-05-17)
      Two remarkable properties exhibited by graphene electrons are their pseudo-relativistic behavior and their ballistic motion that mimics the propagation of electromagnetic waves in a refractive medium. Despite heavy ...
    • Electrical pulse fabrication of graphene nanopores in electrolyte solution 

      Kuan, Aaron Tzeyang; Lu, Bo; Xie, Ping; Szalay, Tamas; Golovchenko, Jene Andrew (AIP Publishing, 2015)
      Nanopores in graphenemembranes can potentially offer unprecedented spatial resolution for single molecule sensing, but their fabrication has thus far been difficult, poorly scalable, and prone to contamination. We demonstrate ...
    • Electron Interferometry and Magnon Transport in Graphene Quantum Hall Systems 

      Wei, Di S. (2019-05-17)
      The discovery of graphene, an atomically thin layer of carbon, has given the condensed matter community an opportunity to investigate two dimensional (2D) physics with a fresh set of experimental knobs. The quantum Hall ...
    • Etching of Graphene Devices with a Helium Ion Beam 

      Lemme, Max C.; Bell, David C.; Williams, James R.; Stern, Lewis A.; Baugher, Britton W. H.; Jarillo-Herrero, Pablo; Marcus, Charles Masamed (American Chemical Society, 2009)
      We report on the etching of graphene devices with a helium ion beam, including in situ electrical measurement during lithography. The etching process can be used to nanostructure and electrically isolate different regions ...
    • From Hopping to Ballistic Transport in Graphene-Based Electronic Devices 

      Taychatanapat, Thiti (2013-10-08)
      This thesis describes electronic transport experiments in graphene from the hopping to the ballistic regime. The first experiment studies dual-gated bilayer graphene devices. By applying an electric field with these dual ...
    • Graphene synthesis by ion implantation 

      Garaj, Slaven; Hubbard, William; Golovchenko, Jene Andrew (AIP Publishing, 2010)
      We demonstrate an ion implantation method for large-scale synthesis of high quality graphene films with controllable thickness. Thermally annealing polycrystalline nickel substrates that have been ion implanted with carbon ...
    • Imaging Universal Conductance Fluctuations in Graphene 

      Borunda, Mario; Berezovsky, Jesse; Westervelt, Robert M.; Heller, Eric J. (American Chemical Society (ACS), 2011)
      We study conductance fluctuations (CF) and the sensitivity of the conductance to the motion of a single scatterer in two-dimensional massless Dirac systems. Our extensive numerical study finds limits to the predicted ...
    • Molecule-hugging graphene nanopores 

      Garaj, S; Liu, Song; Golovchenko, Jene Andrew; Branton, Daniel (Proceedings of the National Academy of Sciences, 2013)
      It has recently been recognized that solid-state nanopores in single-atomic-layer graphene membranes can be used to electronically detect and characterize single long charged polymer molecules. We have now fabricated ...
    • Multi-scale Theoretical Modeling of Twisted van der Waals Bilayers 

      Fang, Shiang (2019-04-24)
      Two-dimensional layered materials are an interesting class of quantum materials. Since the discovery of exfoliated single-layer graphene, more types of two-dimensional layered materials have been investigated. In contrast ...
    • Nanoelectronics-Biology Frontier: From Nanoscopic Probes for Action Potential Recording in Live Cells to Three-Dimensional Cyborg Tissues 

      Duan, Xiaojie; Fu, Tian-Ming; Liu, Jia; Lieber, Charles M. (Elsevier, 2013)
      Semiconductor nanowires configured as the active channels of field-effect transistors (FETs) have been used as detectors for high-resolution electrical recording from single live cells, cell networks, tissues and organs. ...
    • Relativistic Magnetotransport in Graphene 

      Mueller, Markus; Fritz, Lars; Sachdev, Subir; Schmalian, Joerg (American Institute of Physics, 2009)
      We study the thermal and electric transport of a fluid of interacting Dirac fermions as they arise in single-layer graphene. We include Coulomb interactions, a dilute density of charged impurities and the presence of a ...
    • Transition-Metal Single Atoms in a Graphene Shell as Active Centers for Highly Efficient Artificial Photosynthesis 

      Jiang, Kun; Siahrostami, Samira; Akey, Austin; Li, Yanbin; Lu, Zhiyi; Lattimer, Judith; Hu, Yongfeng; Stokes, Richard C.; Gangishetty, Mahesh; Chen, Guangxu; Zhou, Yawei; Hill, I. Winfield; Cai, Wen-Bin; Bell, David C.; Chan, Karen; Nørskov, Jens K.; Cui, Yi; Wang, Haotian (Elsevier BV, 2017)
      Utilizing solar energy to fix carbon dioxide (CO2) with water into chemical fuels and oxygen, a mimic process of photosynthesis in nature, is becoming increasingly important but still challenged by the low selectivity and ...
    • Two-Dimensional Plasmonics in Massive and Massless Electron Gases 

      Yoon, Hosang (2014-10-21)
      Plasmonic waves in solid-state are caused by collective oscillation of mobile charges inside or at the surface of conductors. In particular, surface plasmonic waves propagating at the skin of metals have recently attracted ...