Now showing items 1-20 of 121

    • Absence of Anomalous Copper Vibrations in YBa2 Cu3O7−δ 

      Hecker, N. E.; Mook, H. A.; Harvey, J. A.; Hill, N. W.; Moxon, M. C.; Golovchenko, Jene Andrew (American Physical Society (APS), 1994)
      We find a normal temperature dependence for the Doppler broadening of the 230-eV resonance in the neutron cross section of Cu65 atoms in YBa2Cu3O7 between 10 and 300 K. No abrupt changes in the copper momentum spectrum ...
    • Absence of discontinuities in ion-channeling parameters for YBa2 Cu3O7−δ thin films 

      Hecker, N. E.; Haakenaasen, R.; Golovchenko, Jene Andrew; Chervinsky, J; Eom, C. B. (American Physical Society (APS), 1997)
      We have measured the ion-channeling minimum yield (χmin) and angular width (Ψ1/2) for Y, Ba, Cu, and O in 2000 Å (001)-oriented films of YBa2Cu3O7−δ on MgO. The measurements mapped out a 30 K region around the critical ...
    • Adatom registry on Si(111)-(√3 × √3 )R30°-B 

      Bedrossian, P.; Mortensen, K.; Chen, D. M.; Golovchenko, Jene Andrew (American Physical Society (APS), 1990)
      We have used tunneling microscopy to determine the binding site of adatoms on Si(111)-(√3 × √3 )R30° stabilized by surface boron doping. The adatoms are found to occupy the T4 binding site, regardless of either the local ...
    • Annealing of Te-implanted GaAs by ruby laser irradiation 

      Golovchenko, Jene Andrew; Venkatesan, T. N. C. (AIP Publishing, 1978)
      A single pulse of ruby laser radiation is shown to cause significant regrowth in the amorphous region of heavily ion‐implanted GaAs. The implanted Te atoms and the host material both show good channeling dips, suggesting ...
    • Arsenic atom location on passivated silicon (111) surfaces 

      Patel, J. R.; Golovchenko, Jene Andrew; Freeland, P. E.; Gossmann, H- J. (American Physical Society (APS), 1987)
      The position of As atoms on a clean Si(111) surface has been determined with x-ray standing waves in ultrahigh vacuum. The As atoms occupy exclusively the top half of the silicon (111) double plane and lie at 0.17 Å above ...
    • Atom-by-atom nucleation and growth of graphene nanopores 

      Russo, Craig Anthony; Golovchenko, Jene Andrew (Proceedings of the National Academy of Sciences, 2012)
      Graphene is an ideal thin membrane substrate for creating molecule-scale devices. Here we demonstrate a scalable method for creating extremely small structures in graphene with atomic precision. It consists of inducing ...
    • Atomic Layer Deposition to Fine-Tune the Surface Properties and Diameters of Fabricated Nanopores 

      Chen, Peng; Mitsui, Toshiyuki; Farmer, Damon B.; Golovchenko, Jene; Gordon, Roy; Branton, Daniel (American Chemical Society, 2004)
      Atomic layer deposition of alumina enhanced the molecule sensing characteristics of fabricated nanopores by fine-tuning their surface properties, reducing 1/f noise, neutralizing surface charge to favor capture of DNA and ...
    • Base Dependent DNA-carbon Nanotube Interactions: Activation Enthalpies and Assembly-disassembly Control 

      Albertorio, Fernando; Hughes, Mary E.; Golovchenko, Jene A.; Branton, Daniel (Institute of Physics, 2009)
      We quantify the base dependent interactions between single stranded DNA and single walled carbon nanotubes (SWNTs) in solution. DNA/SWNT hybrids hold the promise of applications ranging from nanoscale electronics and ...
    • Bound States of Guided Matter Waves: An Atom and a Charged Wire 

      Hau, Lene Vestergaard; Burns, Michael M.; Golovchenko, Jene A. (American Physical Society, 1992)
      We argue that it is possible to bind a neutral atom in stable orbits around a wire charged by a time-varying sinusoidal voltage. Both classical and quantum-mechanical theories for this system are discussed, and a unified ...
    • Calculation of the dynamics of surface melting during laser annealing 

      Surko, C. M.; Simons, A. L.; Auston, D. H.; Golovchenko, Jene Andrew; Slusher, R. E.; Venkatesan, T. N. C. (AIP Publishing, 1979)
      We present a thermal transport model to describe the melting and resolidification of semiconductors which is observed to occur during annealing with a pulsed laser. The temperature‐dependent properties of both the solid ...
    • A capacitance-based micropositioning system for x-ray rocking curve measurements 

      Miller, G. L.; Boie, R. A.; Cowan, P. L.; Golovchenko, Jene Andrew; Kerr, R. W.; Robinson, D. A. H. (AIP Publishing, 1979)
      Certain types of x‐ray experiments require very precise angular positioning of crystals in the vicinity of the Bragg reflection condition. A system applicable to some measurement of this type is described which achieves a ...
    • Charge state dependence of channeled ion energy loss 

      Golovchenko, Jene Andrew; Goland, A. N.; Rosner, J. S.; Thorn, C. E.; Wegner, H. E.; Knudsen, H.; Moak, C. D. (American Physical Society (APS), 1981)
      The charge state dependence of channeled ion energy loss has been determined for a series of ions ranging from fluorine to chlorine along the ⟨110⟩ direction in a silicon crystal. Energy losses for both bare ions and ions ...
    • Coherent Compton Effect 

      Golovchenko, Jene Andrew; Kaplan, D. R.; Kincaid, B.; Levesque, R.; Meixner, A.; Robbins, M. F.; Felsteiner, J. (American Physical Society (APS), 1981)
      Interference effects have been observed when coherently related x-ray beams are Compton scattered from an atomic system. We use dynamical diffraction methods to prepare the initial x-ray state and observe the coherent ...
    • Comment on “Low-temperature homoepitaxial growth on high-miscut Si(111) mediated by thin overlayers of Pb” [Appl. Phys. Lett. 75, 2954 (1999)] 

      Evans, P. G.; Dubon, O. D.; Chervinsky, J; Spaepen, Frans A.; Golovchenko, Jene Andrew (AIP Publishing, 2000)
    • Confinement-Enhanced Electron Transport across a Metal-Semiconductor Interface 

      Altfeder, I. B.; Golovchenko, Jene Andrew; Narayanamurti, Venkatesh (American Physical Society (APS), 2001)
      We present a combined scanning tunneling microscopy and ballistic electron emission microscopy study of electron transport across an epitaxial Pb/Si(111) interface. Experiments with a self-assembled Pb nanoscale wedge ...
    • Correlated scattering of protons impinging as hydrogen molecules 

      Golovchenko, Jene Andrew; Laegsgaard, Erik (American Physical Society (APS), 1974)
      The joint energy and angular-distribution function of protons transmitted through a thin foil when incident as 2-MeV H+2 has been measured. The experimental result is compared with simple calculations and satisfactory ...
    • Coulomb blockade in suspended Si3N4 -coated single-walled carbon nanotubes 

      Peng, H. B.; Golovchenko, Jene Andrew (AIP Publishing, 2004)
      Uniform coaxial coating of suspended single-walled carbon nanotubes with high-quality dielectric silicon nitride has been obtained by low-pressure chemical vapor deposition. A three-terminal device has been demonstrated ...
    • Critical analysis of the charge-state dependence of the energy loss of channeled ions 

      Golovchenko, Jene Andrew; Cox, D. E.; Goland, A. N. (American Physical Society (APS), 1982)
      A critical analysis of channeled-ion energy-loss experiments is presented with the goal of commenting on the presence of the Barkas effect of Z31 corrections to the stopping power. Accurate charge-density values are obtained ...
    • Deduction of Continuum Potentials from Planar Channeling 

      Gibson, W. M.; Golovchenko, Jene Andrew (American Physical Society (APS), 1972)
      A new method for determining planar continuum potentials from planar channeling data has been developed. Preliminary experiments have been done for 1.8-MeV α particles in [111] gold planar directions from which the continuum ...
    • Detecting Single Stranded DNA with a Solid State Nanopore 

      Fologea, Daniel; Gershow, Marc; Ledden, Bradley; McNabb, David S.; Golovchenko, Jene Andrew; Li, Jiali (American Chemical Society (ACS), 2005)
      Voltage biased solid-state nanopores are used to detect and characterize individual single stranded DNA molecules of fixed micrometer length by operating a nanopore detector at pH values greater than ∼11.6. The distribution ...