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Phonon Softening and High-Pressure Low-Symmetry Phases of Cesium Iodide (open access)

Phonon Softening and High-Pressure Low-Symmetry Phases of Cesium Iodide

Article on phonon softening and high-pressure low-symmetry phases of cesium iodide.
Date: August 17, 1992
Creator: Buongiorno Nardelli, Marco; Baroni, Stefano & Giannozzi, Paolo
System: The UNT Digital Library
Effects of O2, Ar, and H2 gases on the field-emission properties of single-walled and multiwalled carbon nanotubes (open access)

Effects of O2, Ar, and H2 gases on the field-emission properties of single-walled and multiwalled carbon nanotubes

In this article, the authors compare the effects of O2, Ar, and H2 gases on the field-emission (FE) properties of single-walled carbon nanotubes (SWNTs) and multiwalled carbon nanotubes (MWNTs).
Date: September 17, 2001
Creator: Wadhawan, Atul; Stallcup, Richard E.; Stephens, Kenneth F.; Pérez, José M. & Akwani, Ikerionwu A.
System: The UNT Digital Library
Chandra Observations of the Highest Redshift Quasars from the Sloan Digital Sky Survey (open access)

Chandra Observations of the Highest Redshift Quasars from the Sloan Digital Sky Survey

This article presents Chandra observations of 21 z > 4 quasars, including 11 sources at z > 5.
Date: February 17, 2006
Creator: Shemmer, Ohad; Brandt, William Nielsen; Schneider, Donald P.; Fan, Xiaohui; Strauss, Michael A.; Diamond-Stanic, Aleksandar M. et al.
System: The UNT Digital Library
Star Formation in the Hosts of High-z QSOs: Evidence from Spitzer PAH Detections (open access)

Star Formation in the Hosts of High-z QSOs: Evidence from Spitzer PAH Detections

This article presents Spitzer rest frame mid-infrared spectroscopy of 12z~2 millimeter-bright type 1 QSOs.
Date: May 17, 2008
Creator: Lutz, Dieter; Sturm, Eckhard; Tacconi, Linda; Valiante, Elisabetta; Schweitzer, Mario; Netzer, Hagai et al.
System: The UNT Digital Library
Symmetry-induced tunneling in one-dimensional disordered potentials (open access)

Symmetry-induced tunneling in one-dimensional disordered potentials

This article discusses symmetry-induced tunneling in one-dimensional disordered potentials.
Date: July 17, 2008
Creator: Diez, Enrique; Izrailev, Felix M.; Krokhin, Arkadii A. & Rodriguez, A.
System: The UNT Digital Library
Inhomogeneous DNA: Conducting exons and insulating introns (open access)

Inhomogeneous DNA: Conducting exons and insulating introns

Article discussing inhomogeneous DNA and conducting exons and insulating introns.
Date: August 17, 2009
Creator: Krokhin, Arkadii A.; Bagci, V. M. K.; Izrailev, Felix M.; Usatenko, O. V. & Yampol'skii, V. A.
System: The UNT Digital Library
Comment on "Modification of graphene properties due to electron-beam irradiation" (open access)

Comment on "Modification of graphene properties due to electron-beam irradiation"

This article gives comment to a previous article entitled 'Modification of graphene properties due to electron-beam irradiation'. These articles discuss the modification of graphene properties due to electron-beam irradiation.
Date: December 17, 2009
Creator: Jones, Jason D.; Ecton, Philip A.; Mo, Yudong & Pérez, José M.
System: The UNT Digital Library
Spatially Periodic Electromagnetic Force Field For Plasma Confinement and Control (open access)

Spatially Periodic Electromagnetic Force Field For Plasma Confinement and Control

In this article, a theoretical understanding is developed of the single-particle reflection properties of a force field, considering the incident charged particles to have a non-drifting, isotropic velocity distribution. Classical trajectory Monte Carlo simulations and analytical modeling are employed. The initiation of an experimental effort to study force fields is described.
Date: April 17, 2012
Creator: Ordonez, Carlos A.; Pacheco, J. L. & Weathers, Duncan L.
System: The UNT Digital Library
Hyperbolic metamaterials: new physics behind a classical problem (open access)

Hyperbolic metamaterials: new physics behind a classical problem

This article summarizes earlier theories in the Clemmow's prescription for transformation of the electromagnetic field in hyperbolic media and provides a review of recent developments in this active research area.
Date: June 17, 2013
Creator: Drachev, Vladimir P.; Podolskiy, Viktor A. & Kildishev, Alexander V.
System: The UNT Digital Library
Nanoimprinted plasmonic nanocavity arrays (open access)

Nanoimprinted plasmonic nanocavity arrays

This article demonstrates high resonant absorption of visible light with a plasmonic nanocavity chain structure fabricated through resistless nanoimprinting in metal (RNIM).
Date: June 17, 2013
Creator: Kim, Sangsik; Xuan, Yi; Drachev, Vladimir P.; Varghese, Leo T.; Li, Fan; Qi, Minghao et al.
System: The UNT Digital Library
Accelerator-based neutron source using a cold deuterium target with degenerate electrons (open access)

Accelerator-based neutron source using a cold deuterium target with degenerate electrons

This article discusses recent reports of potential cold deuterium targets.
Date: July 17, 2013
Creator: Phillips, R. E. & Ordonez, Carlos A.
System: The UNT Digital Library
Exploratory X-Ray Monitoring of Luminous Radio-Quiet Quasars at High Redshift: Initial Results (open access)

Exploratory X-Ray Monitoring of Luminous Radio-Quiet Quasars at High Redshift: Initial Results

This article presents initial results from an exploratory X-ray monitoring project of two groups of comparably luminous radio-quiet quasars.
Date: January 17, 2014
Creator: Shemmer, Ohad; Brandt, William Nielsen; Paolillo, Maurizio; Kaspi, Shai; Vignali, Christian; Stein, Matthew S. et al.
System: The UNT Digital Library
Confinement of antiprotons in the electrostatic space charge of positrons in a model of the ALPHA antihydrogen trap (open access)

Confinement of antiprotons in the electrostatic space charge of positrons in a model of the ALPHA antihydrogen trap

This article details the equilibrium of a positron plasma in a model of the ALPHA apparatus that is computed using a finite-difference method. The positron plasma in the model extends to axial magnetic mirrors in absence of an octupole field. Formation of a three-dimensional electrostatic potential well is found to occur self-consistently. Well depths under various conditions are evaluated. Also, the equilibrium with an antiproton plasma confined in the potential well is computed.
Date: March 17, 2016
Creator: Lane, Ryan A. & Ordonez, Carlos A.
System: The UNT Digital Library
Entropy Balance in the Expanding Universe: A Novel Perspective (open access)

Entropy Balance in the Expanding Universe: A Novel Perspective

The article describes cosmic expansion as correlated with the standpoints of local observers’ co-moving horizons. In keeping with relational quantum mechanics, which claims that quantum systems are only meaningful in the context of measurements, the authors suggest that information gets ergodically “diluted” in our isotropic and homogeneous expanding Universe, so that an observer detects just a limited amount of the total cosmic bits.
Date: April 17, 2019
Creator: Tozzi, Arturo & Peters, James F.
System: The UNT Digital Library
Discovery of the first heavily obscured QSO candidate at z > 6 in a close galaxy pair (open access)

Discovery of the first heavily obscured QSO candidate at z > 6 in a close galaxy pair

This article reports the Chandra discovery of the first heavily obscured QSO candidate in the early universe, hosted by a close (≈5 kpc) galaxy pair at z = 6.515.
Date: May 17, 2022
Creator: Vito, F.; Brandt, William Nielsen; Bauer, Franz E.; Gilli, Roberto; Luo, B.; Zamorani, G. et al.
System: The UNT Digital Library
ARKENSTONE – I. A novel method for robustly capturing high specific energy outflows in cosmological simulations (open access)

ARKENSTONE – I. A novel method for robustly capturing high specific energy outflows in cosmological simulations

Article describes how ARKENSTONE is a new model for multiphase, stellar feedback-driven galactic winds designed for inclusion in coarse resolution cosmological simulations. In this first paper of a series, the authors describe the features that allow ARKENSTONE to properly treat high specific energy wind components and demonstrate them using idealized non-cosmological simulations of a galaxy with a realistic circumgalactic medium (CGM) using the AREPO code.
Date: October 17, 2023
Creator: Smith, Matthew C.; Fielding, Drummond B.; Bryan, Greg L.; Kim, Chang-Goo; Ostriker, Eve C.; Somerville, Rachel S. et al.
System: The UNT Digital Library