Secondary Electron Yield Measurements Of Carbon Nanotube Forests: Dependence On Morphology And Substrate,
2018
Utah State University
Secondary Electron Yield Measurements Of Carbon Nanotube Forests: Dependence On Morphology And Substrate, Brian Wood, Justin Christensen, Gregory Wilson, T C. Shen, Jr Dennison
Posters
No abstract provided.
A Predictive Range Expression: Applications And Limitations,
2018
Utah State University
A Predictive Range Expression: Applications And Limitations, Gregory Wilson, Anne C. Starley, Lisa Phillipps, Jr Dennison
Journal Articles
No abstract provided.
Spin Hall And Nernst Effects Of Weyl Magnons,
2018
University of Nebraska-Lincoln
Spin Hall And Nernst Effects Of Weyl Magnons, Vladimir Zyuzin, Alexey Kovalev
Department of Physics and Astronomy: Faculty Publications
In this paper, we present a simple model of a three-dimensional insulating magnetic structure which represents a magnonic analog of the layered electronic system described by A. A. Burkov and L. Balents [Phys. Rev. Lett. 107, 127205 (2011)]. In particular, our model realizes Weyl magnons as well as surface states with a Dirac spectrum. In this model, the Dzyaloshinskii-Moriya interaction is responsible for the separation of opposite Weyl points in momentum space. We calculate the intrinsic (due to the Berry curvature) transport properties of Weyl and so-called anomalous Hall effect magnons. The results are compared with fermionic …
Isostructural Metal-Insulator Transition In Vo2,
2018
University of Nebraska-Lincoln
Isostructural Metal-Insulator Transition In Vo2, D. Lee, B. Chung, Y. Shi, G.-Y. Kim, Neil Campbell, F. Xue, K. Song, S.-Y. Choi, J. P. Podkaminer, T. H. Kim, P. J. Ryan, J.-W. Kim, Tula R. Paudel, J.-H. Kang, J. W. Spinuzzi, D. A. Tenne, Evgeny Y. Tsymbal, M. S. Rzchowski, L. Q. Chen, J. Lee, Chang-Beom Eom
Evgeny Tsymbal Publications
No abstract provided.
Towards A Strong Spin–Orbit Coupling Magnetoelectric Transistor,
2018
University of Nebraska - Lincoln
Towards A Strong Spin–Orbit Coupling Magnetoelectric Transistor, Peter Dowben, Christian Binek, Kai Zhang, Lu Wang, Wai-Ning Mei, Jonathan P. Bird, Uttam Singisetti, Xia Hong, Kang L. Wang, Dmitri Nikonov
Peter Dowben Publications
Here, we outline magnetoelectric (ME) device concepts based on the voltage control of the interface magnetism of an ME antiferromagnet gate dielectric formed on a very thin semiconductor channel with large spin–orbit coupling (SOC). The emphasis of the ME spin field-effect transistors (ME spin FET) is on an antiferromagnet spin–orbit read logic device and a ME spin-FET multiplexer. Both spin-FET schemes exploit the strong SOC in the semiconducting channel materials but remain dependent on the voltage-induced switching of an ME, so that the switching time is limited only by the switching dynamics of the ME. The induced exchange field spin …
Anisotropy And Phonon Modes From Analysis Of The Dielectric Function Tensor And The Inverse Dielectric Function Tensor Of Monoclinic Yttrium Orthosilicate,
2018
University of Nebraska-Lincoln
Anisotropy And Phonon Modes From Analysis Of The Dielectric Function Tensor And The Inverse Dielectric Function Tensor Of Monoclinic Yttrium Orthosilicate, Alyssa Mock, Rafal Korlacki, Sean Knight, Mathias Schubert
Department of Electrical and Computer Engineering: Faculty Publications
We determine the frequency dependence of the four independent Cartesian tensor elements of the dielectric function for monoclinic symmetry Y2SiO5 using generalized spectroscopic ellipsometry from 40–1200 cm−1. Three different crystal cuts, each perpendicular to a principle axis, are investigated. We apply our recently described augmentation of lattice anharmonicity onto the eigendielectric displacement vector summation approach [A.Mock et al., Phys. Rev. B 95, 165202 (2017)], and we present and demonstrate the application of an eigendielectric displacement loss vector summation approach with anharmonic broadening. We obtain an excellent match between all measured and model-calculated dielectric …
Functionalized Nanoporous Carbon Scaffolds For Hydrogen Storage Applications,
2018
Missouri University of Science and Technology
Functionalized Nanoporous Carbon Scaffolds For Hydrogen Storage Applications, Christopher L. Carr
Doctoral Dissertations
"Recent efforts have demonstrated confinement in porous scaffolds at the nanoscale can alter the hydrogen sorption properties of metal hydrides, though not to an extent feasible for use in onboard hydrogen storage applications, proposing the need for a method allowing further modifications. The work presented here explores how the functionalization of nanoporous carbon scaffold surfaces with heteroatoms can modify the hydrogen sorption properties of confined metal hydrides in relation to non-functionalized scaffolds (FS). Investigations of nanoconfined LiBH4 and NaAlH4 indicate functionalizing the carbon scaffold surface with nitrogen can shift the activation energy of hydrogen desorption in excess of …
Incorporating Electron Range Approximations Into Secondary Electron Emission Models,
2018
Utah State University
Incorporating Electron Range Approximations Into Secondary Electron Emission Models, Gregory Wilson
Presentations
No abstract provided.
Wireless Antenna Detection Of Electrostatic Discharge Events,
2018
Utah State University
Wireless Antenna Detection Of Electrostatic Discharge Events, Allen Andersen, Jr Dennison
Posters
No abstract provided.
Characterizing The Effects Of Radiation On Muscle Cells,
2018
Utah State University
Characterizing The Effects Of Radiation On Muscle Cells, Lori Caldwell, Charles Harding, Eryn Hanson, Jr Dennison, Elizabeth Vargis
Presentations
No abstract provided.
Electron Range Computational Tool For Arbitrary Materials Over A Wide Energy Range,
2018
Utah State University
Electron Range Computational Tool For Arbitrary Materials Over A Wide Energy Range, Gregory Wilson, Jr Dennison, Anne C. Starley
Conference Proceedings
No abstract provided.
Time-Evolved Constant Voltage Conductivity Polymeric Materials,
2018
Utah State University
Time-Evolved Constant Voltage Conductivity Polymeric Materials, Brian Wood, Jr Dennison, David King
Conference Proceedings
No abstract provided.
Time-Evolved Constant Voltage Conductivity Measurements Of Common Spaceborne Polymeric Materials,
2018
Utah State University
Time-Evolved Constant Voltage Conductivity Measurements Of Common Spaceborne Polymeric Materials, Brian Wood, David King, Jr Dennison
Journal Articles
No abstract provided.
Using Quantile-Quantile Plots To Compare Experimental Apples And Oranges In Physics Labs,
2018
Utah State University
Using Quantile-Quantile Plots To Compare Experimental Apples And Oranges In Physics Labs, Allen Andersen, Jr Dennison
Posters
No abstract provided.
Parameterization Of Secondary And Backscattered Electron Yields For Spacecraft Charging,
2018
Utah State Univesity
Parameterization Of Secondary And Backscattered Electron Yields For Spacecraft Charging, Jr Dennison, Phil Lundgreen, Justin Christensen
Posters
No abstract provided.
Effects Of Sample Adhesives Acoustic Properties On Spatial Resolution Of Pulsed Electroacoustic Measurements,
2018
Utah State Univesity
Effects Of Sample Adhesives Acoustic Properties On Spatial Resolution Of Pulsed Electroacoustic Measurements, Zachary Gibson, Jr Dennison, Lee Pearson, Erick Griffiths, Anthony Pearson, Virginie Griseri
Posters
No abstract provided.
Electron Range Computational Tool For Arbitrary Materials Over A Wide Energy Range,
2018
Utah State University
Electron Range Computational Tool For Arbitrary Materials Over A Wide Energy Range, Gregory Wilson, Anne C. Starley, Jr Dennison
Posters
No abstract provided.
Magnetic Skyrmion Bubble Motion Driven By Surface Acoustic Waves,
2018
University of Nebraska-Lincoln
Magnetic Skyrmion Bubble Motion Driven By Surface Acoustic Waves, Rabindra Nepal, Utkan Güngördü, Alexey Kovalev
Department of Physics and Astronomy: Faculty Publications
We study the dynamical control of a magnetic skyrmion bubble by using counter-propagating surface acoustic waves (SAWs) in a ferromagnet. First, we determine the bubble mass and derive the force due to SAWs acting on a magnetic bubble using Thiele's method. The force that pushes the bubble is proportional to the strain gradient for the major strain component. We then study the dynamical pinning and motion of magnetic bubbles by SAWs in a nanowire. In a disk geometry, we propose a SAWs-driven skyrmion bubble oscillator with two resonant frequencies.
Experimental Investigation Of Impurities And Their Effect On Acousto-Electric Properties Of Lithium Niobate,
2018
University of Mississippi
Experimental Investigation Of Impurities And Their Effect On Acousto-Electric Properties Of Lithium Niobate, Chandrima Chatterjee
Electronic Theses and Dissertations
No abstract provided.
Photoluminescence From Gan Co-Doped With C And Si,
2018
Virginia Commonwealth University
Photoluminescence From Gan Co-Doped With C And Si, Mykhailo Vorobiov
Theses and Dissertations
This thesis devoted to the experimental studies of yellow and blue luminescence (YL and BL relatively) bands in Gallium Nitride samples doped with C and Si. The band BLC was at first observed in the steady-state photoluminescence spectrum under high excitation intensities and discerned from BL1 and BL2 bands appearing in the same region of the spectrum. Using the time-resolved photoluminescence spectrum, we were able to determine the shape of the BLC and its position at 2.87 eV. Internal quantum efficiency of the YL band was estimated to be 90\%. The hole capture coefficient of the BLC …
