Browsing ECE Publications by Author "Natelson, Douglas"
Now showing items 1-8 of 8
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Hydrogen Diffusion and Stabilization in Single-Crystal VO2 Micro/Nanobeams by Direct Atomic Hydrogenation
(2014)We report measurements of the diffusion of atomic hydrogen in single crystalline VO2 micro/nanobeams by direct exposure to atomic hydrogen, without catalyst. The atomic hydrogen is generated by a hot filament, and the ... -
In Situ Diffraction Study of Catalytic Hydrogenation of VO2: Stable Phases and Origins of Metallicity
(2014)Controlling electronic population through chemical doping is one way to tip the balance between competing phases in materials with strong electronic correlations. Vanadium dioxide exhibits a first-order phase transition ... -
In situ imaging of the conducting filament in a silicon oxide resistive switch
(2012)The nature of the conducting filaments in many resistive switching systems has been elusive. Throughﾠin situﾠtransmission electron microscopy, we image the real-time formation and evolution of the filament in a silicon ... -
Nanostructure investigations of nonlinear differential conductance in NdNiO3 thin films
(2014)Transport measurements on thin films of NdNiO3 reveal a crossover to a regime of pronounced nonlinear conduction below the well-known metal-insulator transition temperature. The evolution of the transport properties at ... -
Shot noise detection in hBN-based tunnel junctions
(2017)High quality Au/hBN/Au tunnel devices are fabricated using transferred atomically thin hexagonal boron nitride as the tunneling barrier. All tunnel junctions show tunneling resistance on the order of several kΩ/μm2. Ohmic ... -
Thermally driven analog of the Barkhausen effect at the metal-insulator transition in vanadium dioxide
(2014)The physics of the metal-insulator transition (MIT) inﾠvanadiumﾠdioxide remains a subject of intense interest. Because of the complicating effects of elastic strain on the phase transition, there is interest in comparatively ... -
Thermoplasmonics: Quantifying Plasmonic Heating in Single Nanowires
(2014)Plasmonic absorption of light can lead to significant local heating in metallic nanostructures, an effect that defines the sub-field of thermoplasmonics and has been leveraged in diverse applications from biomedical ... -
Voltage tuning of vibrational mode energies in single-molecule junctions
(2014)Vibrational modes of molecules are fundamental properties determined by intramolecular bonding, atomic masses, and molecular geometry, and often serve as important channels for dissipation in nanoscale processes. Although ...
