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Structural and electronic properties of carbon nanotube tapers

Description: Article on structural and electronic properties of carbon nanotube tapers, a set of nanostructures comprised of straight tubular sections with decreasing diameters, joined to each other via conical funnels and terminated with a hemispherical cap.
Date: October 29, 2001
Creator: Meunier, Vincent; Buongiorno Nardelli, Marco; Roland, Christopher & Bernholc, Jerry
Partner: UNT College of Arts and Sciences
open access

First-principles investigations of the dielectric properties of polypropylene/metal-oxide interfaces

Description: Article on first-principles investigations of the dielectric properties of polypropylene/metal-oxide interfaces. Nanoscale-resolved dielectric properties of polypropylene/metal-oxide (alumina, PbTiO₃) interfaces and of the corresponding surfaces are investigated via first-principles calculations.
Date: October 30, 2009
Creator: Yu, Liping; Ranjan, Vivek; Buongiorno Nardelli, Marco & Bernholc, Jerry
Partner: UNT College of Arts and Sciences
open access

Scattering Suppression in Epsilon-Near-Zero Plasmonic Fractal Shells

Description: This article studies silica-gold core-shell microspheres with plasmonic fractal shells to show that the forward scattering of the silica microspheres is strongly suppressed.
Date: October 12, 2015
Creator: de Silva, Vashista C.; Nyga, Piotr & Drachev, Vladimir P.
Partner: UNT College of Arts and Sciences
open access

Electrostatic enhancement of light emitted by semiconductor quantum well

Description: This article proposes an electrostatic mechanism for enhancement of light radiated from semiconductor emitter which is comparable in effect to plasmonic mechanism.
Date: October 13, 2015
Creator: Krokhin, Arkadii A.; Neogi, Arup; Llopis, A.; Mahat, M.; Gumen, L.; Pereira, S. et al.
Partner: UNT College of Arts and Sciences
open access

The 2019 materials by design roadmap

Description: This roadmap article presents an overview of the current state of computational materials prediction, synthesis and characterization approaches, materials design needs for various technologies, and future challenges and opportunities that must be addressed.
Date: October 24, 2018
Creator: Alberi, Kirstin; Buongiorno Nardelli, Marco; Zakutayev, Andriy; Mitas, Lubos; Curtarolo, Stefano; Jain, Anubhav et al.
Partner: UNT College of Science
open access

RBS Study of a Dilute Alloy of Ga(99.8% at.):Bi(0.2% at.)

Description: This paper from the 2016 Conference on Application of Accelerators in Research and Industry conference proceedings describes an attempt to observe an atomic bismuth monolayer with Rutherford backscattering to demonstrate the surface concentration of the bismuth over the alloy in the bulk.
Date: October 26, 2017
Creator: Peterson, Randolph S.; Augustine, Carlyn N.; Beriont, Griffin G.; Farr, Aidan T.; Jenkins, William T. J.; Morris, Taylor A. et al.
Partner: UNT College of Science
open access

Linear response at criticality

Description: In this article, the authors study a set of cooperatively interacting units at criticality, and prove with analytical and numerical arguments that they generate the same renewal non-Poisson intermittency as that produced by blinking quantum dots.
Date: October 24, 2012
Creator: Svenkeson, Adam; Bologna, Mauro & Grigolini, Paolo
Partner: UNT College of Arts and Sciences
open access

Space-charge-based electrostatic plasma confinement involving relaxed plasma species

Description: In this article, a numerical study is reported on the equilibrium properties of a surface-emitted or edge-confined non-drifting plasma. A self-consistent finite-differences evaluation of the electrostatic potential is carried out for a non-neutral plasma that follows a Boltzmann density distribution.
Date: October 23, 2012
Creator: Pacheco, J. L.; Ordonez, Carlos A. & Weathers, Duncan L.
Partner: UNT College of Arts and Sciences
open access

Quantum walks of two interacting particles on percolation graphs

Description: This paper addresses the dynamics of two indistinguishable interacting particles moving on a dynamical percolation graph.
Date: October 22, 2017
Creator: Siloi, Ilaria; Benedetti, Claudia; Piccinini, Enrico; Paris, Matteo G. A. & Bordone, Paolo
Partner: UNT College of Science
open access

Aperture-based antihydrogen gravity experiment: Parallel plate geometry

Description: This article presents an analytical model and a Monte Carlo simulation of an experiment that could be used to determine the direction of the acceleration of antihydrogen due to gravity.
Date: October 24, 2013
Creator: Rocha, J. R.; Hedlof, R. M. & Ordonez, Carlos A.
Partner: UNT College of Arts and Sciences
open access

Effects of light on the resistivity of chemical vapor deposited graphene films

Description: This article reports that the resistance of a chemical vapor deposition (CVD) grown graphene film transferred onto an SiO₂ substrate increases to higher saturation values upon exposure to light of decreasing wavelength from the visible to ultraviolet.
Date: October 24, 2016
Creator: Mo, Yudong; Pérez, José M.; Ye, Zhou; Zhao, Lei; Yang, Shizhong; Tan, Liuxi et al.
Partner: UNT College of Arts and Sciences
open access

Reverberation Mapping of High-Luminosity Quasars

Description: This article presents the CIV BLR size and luminosity relation over eight orders of magnitude in luminosity, pushing the luminosity limit to its highest point so far.
Date: October 30, 2017
Creator: Kaspi, Shai; Brandt, William Nielsen; Maoz, Dan; Netzer, Hagai; Schneider, Donald P. & Shemmer, Ohad
Partner: UNT College of Science
open access

Interface chemistry and leakage current mechanism of HfGdON/Ge gate stack modulated by ALD-driven interlayer

Description: Article describes an experiment in which a Ge metal-oxide-semiconductor (MOS) capacitor based on HfGdON/Ge gate stacks with an ALD-driven passivation layer was fabricated, and compares it's interfacial and electrical properties with those of its counterparts that have not undergone passivation treatment.
Date: October 21, 2019
Creator: He, Gang; Wang, Die; Ma, Rui; Liu, Mao & Cui, Jingbiao
Partner: UNT College of Science
open access

Reddening, Emission-Line, and Intrinsic Absorption Properties in the Narrow-Line Seyfert 1 Galaxy Arakelian 564

Description: This article uses Hubble Space Telescope UV and optical spectra of the narrow-line Seyfert 1 galaxy Ark 564 to investigate its internal reddening and properties of its emission-line and intrinsic UV absorption gas.
Date: October 12, 2001
Creator: Crenshaw, D.M.; Kraemer, S.B.; Turner, T.J.; Collier, S.; Peterson, Bradley M.; Brandt, William Nielsen et al.
Partner: UNT College of Arts and Sciences
open access

Giant increase in cross-magnetic-field transport rate as an electron-positron plasma cools

Description: The article focuses on a study of an electron-positron plasma in thermal equilibrium within a uniform magnetic field using a classical trajectory Monte Carlo simulation. The cross-magnetic-field single-particle diffusion coefficient is evaluated as a function of the magnetic field strength and plasma temperature. The transport rate is found to increase by many orders of magnitude as the plasma temperature is lowered, for a magnetic field strength of 1 T. The sharp dependence on temperature is d… more
Date: October 5, 2017
Creator: Aguirre, F. F. & Ordonez, Carlos A.
Partner: UNT College of Science
open access

Antihydrogen Beam Formation by Transporting an Antiproton Beam Through an Electron-Positron Plasma That Produces Magnetobound Positronium

Description: This paper from the 2016 Conference on Application of Accelerators in Research and Industry conference proceedings describes the use of a classical trajectory simulation to study the formation of an antihydrogen beam by transporting an antiproton beam through an electron-positron plasma that produces magnetobound positronium.
Date: October 26, 2017
Creator: Hermosillo, M.; Thornton, E. A. & Ordonez, Carlos A.
Partner: UNT College of Science
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