Onset of Ferrielectricity and the Hidden Nature of Nanoscale Polarization in Ferroelectric Thin Films (open access)

Onset of Ferrielectricity and the Hidden Nature of Nanoscale Polarization in Ferroelectric Thin Films

Article on the onset of ferrielectricity and the hidden nature of nanoscale polarization in ferroelectric thin films.
Date: September 5, 2008
Creator: Nuñez, Matías & Buongiorno Nardelli, Marco
System: The UNT Digital Library
Dissociation of Water on Defective Carbon Substrates (open access)

Dissociation of Water on Defective Carbon Substrates

Article on the dissociation of water on defective carbon substrates.
Date: September 23, 2005
Creator: Kostov, Milen; Santiso, Erik; George, A. M.; Gubbins, Keith E. & Buongiorno Nardelli, Marco
System: The UNT Digital Library
Collective polarization effects in ÎČ-polyvinylidene fluoride and its copolymers with tri- and tetrafluoroethylene (open access)

Collective polarization effects in ÎČ-polyvinylidene fluoride and its copolymers with tri- and tetrafluoroethylene

Article on collective polarization effects in ÎČ-polyvinylidene fluoride and its copolymers with tri- and tetrafluoroethylene.
Date: September 23, 2005
Creator: Nakhmanson, Serge M.; Buongiorno Nardelli, Marco & Bernholc, Jerry
System: The UNT Digital Library
Electronic transport in extended systems: Application to carbon nanotubes (open access)

Electronic transport in extended systems: Application to carbon nanotubes

Article on electronic transport in extended systems and the application to carbon nanotubes.
Date: September 15, 1999
Creator: Buongiorno Nardelli, Marco
System: The UNT Digital Library
Direct Measurement of Group Delay Dispersion in Metamagnetics for Ultrafast Pulse Shaping (open access)

Direct Measurement of Group Delay Dispersion in Metamagnetics for Ultrafast Pulse Shaping

This article explores the use of magnetic resonant metamaterials, so called metamagnetics, as dispersive elements for optical pulse shaping.
Date: September 24, 2012
Creator: Brown, Dean P.; Walker, Mark A.; Urbas, Augustine M.; Kildishev, Alexander V.; Xiao, Shumin & Drachev, Vladimir P.
System: The UNT Digital Library
Holographic fabrication of 3D photonic crystals through interference of multi-beams with 4 + 1, 5 + 1 and 6 + 1 configurations (open access)

Holographic fabrication of 3D photonic crystals through interference of multi-beams with 4 + 1, 5 + 1 and 6 + 1 configurations

This article fabricates 3D photonic crystals or quasi-crystals through single beam and single optical element based holographic lithography.
Date: September 9, 2014
Creator: George, David; Lutkenhaus, Jeffrey; Lowell, David; Moazzezi, Mojtaba; Adewole, Murthada; Philipose, Usha et al.
System: The UNT Digital Library
Laser Ablated Carbon Nanodots for Light Emission (open access)

Laser Ablated Carbon Nanodots for Light Emission

This article reports the synthesis of fluorescent carbon dots-like nanostructures obtained through the laser ablation of a carbon solid target in liquid environment is reported.
Date: September 22, 2016
Creator: Reyes, Delfino; Camacho, Marco; Camacho, Miguel; Mayorga, Miguel; Weathers, Duncan L.; Salamo, Greg et al.
System: The UNT Digital Library
Periodic microvariation of B416, a new luminous blue variable in M33 (open access)

Periodic microvariation of B416, a new luminous blue variable in M33

This article reports optical photometric and spectroscopic observations of the M33 star B416, establishing it as the fifth identified luminous blue variable (LBV) in that galaxy.
Date: September 2, 1999
Creator: Shemmer, Ohad; Leibowitz, E. M. & Szkody, Paula
System: The UNT Digital Library
Towards the thermodynamics of localization processes (open access)

Towards the thermodynamics of localization processes

In this article, the authors study the entropy time evolution of a quantum mechanical model, which is frequently used as a prototype for Anderson's localization.
Date: September 2000
Creator: Grigolini, Paolo; Pala, Marco G.; Palatella, Luigi & Roncaglia, Roberto
System: The UNT Digital Library
Non-Gaussian statistics of anomalous diffusion: The DNA sequences of prokaryotes (open access)

Non-Gaussian statistics of anomalous diffusion: The DNA sequences of prokaryotes

This article discusses a non-Gaussian indicator to measure the deviation from Gaussian statistics of a diffusion process generated by dichotomous fluctuations with infinite memory.
Date: September 1998
Creator: Allegrini, Paolo; Buiatti, Marco, 1972-; Grigolini, Paolo & West, Bruce J.
System: The UNT Digital Library
High-redshift AGN in the Chandra Deep Fields: the obscured fraction and space density of the sub-L∗ population (open access)

High-redshift AGN in the Chandra Deep Fields: the obscured fraction and space density of the sub-L∗ population

This article investigates the population of high-redshift (3≀z<6) active galactic nuclei (AGN) selected in the two deepest X-ray surveys, the 7 Ms Chandra Deep Field-South and 2 Ms Chandra Deep Field-North.
Date: September 26, 2017
Creator: Vito, F.; Brandt, William Nielsen; Yang, G.; Gilli, Roberto; Luo, Bin; Vignali, Christian et al.
System: The UNT Digital Library
Triply Differential Measurements for Positron Impact Ionization of Argon (open access)

Triply Differential Measurements for Positron Impact Ionization of Argon

This article reports triply differential cross sections for positron impact ionization of argon.
Date: September 7, 2015
Creator: Mueller, D. W.; Knudsen, E. J.; Boadle, R.; Armitage, S.; Dorn, A.; Buckman, S. J. et al.
System: The UNT Digital Library
Deep Minima and Vortices for Positronium Formation in Low-Energy Positron-Hydrogen Collisions (open access)

Deep Minima and Vortices for Positronium Formation in Low-Energy Positron-Hydrogen Collisions

Article using the two-channel Kohn inverse and Kohn variational methods to investigate ground-state positronium (Ps) formation in positron-hydrogen collisions in the Ore gap. This is the Accepted Manuscript Version of the article.
Date: September 30, 2019
Creator: Alrowaily, Albandari W.; Quintanilla, Sandra J. & Van Reeth, P.
System: The UNT Digital Library
Plasmon coupled super- and sub- radiance from dye shells (open access)

Plasmon coupled super- and sub- radiance from dye shells

Article investigates cooperative spontaneous emission, theoretically and experimentally, for an ensemble of emitters coupled to a core-shell structure.
Date: September 2018
Creator: de Silva, Vashista C.; Moazzezi, Mojtaba; Rostovtsev, Yuri V. & Drachev, Vladimir P.
System: The UNT Digital Library
Anisotropic Optical Properties of 2D Silicon Telluride (open access)

Anisotropic Optical Properties of 2D Silicon Telluride

Article reports an ab initio computational study of the optical dielectric properties of Silicon telluride (Si2Te3) using the GW approximation and the Bethe-Salpeter equation (BSE).
Date: September 27, 2020
Creator: Cui, Jingbiao; Bhattarai, Romakanta; Chen, Jiyang; Hoang, Thang B. & Shen, Xiao
System: The UNT Digital Library
Strain fields around high-energy ion tracks in α-quartz (open access)

Strain fields around high-energy ion tracks in α-quartz

This article discusses strain fields around high-energy ion tracks in α-quartz.
Date: September 21, 2006
Creator: Follstaedt, David M.; Norman, A. K.; Doyle, B. L. & McDaniel, Floyd Del. (Floyd Delbert), 1942-
System: The UNT Digital Library
Nuclear lifetime of states in âč⁎Tc and âč⁶Tc via the pulsed-beam, direct-timing technique (open access)

Nuclear lifetime of states in âč⁎Tc and âč⁶Tc via the pulsed-beam, direct-timing technique

This article discusses nuclear lifetime of states in âč⁎TC and âč⁶TC via the pulsed-beam, direct-timing technique.
Date: September 1974
Creator: McDaniel, Floyd Del. (Floyd Delbert), 1942- & Snyder, F. D.
System: The UNT Digital Library
Holographically Formed Three-Dimensional Penrose-Type Photonic Quasicrystal Through a Lab-Made Single Diffractive Optical Element (open access)

Holographically Formed Three-Dimensional Penrose-Type Photonic Quasicrystal Through a Lab-Made Single Diffractive Optical Element

This describes the use of a holographic lithography method to fabricate large-area three-dimensional Penrose-type photonic quasicrystals.
Date: September 10, 2010
Creator: Harb, Ahmad; Torres, Faraon; Ohlinger, Kris; Lin, Yuankun; Lozano, Karen; Xu, Di et al.
System: The UNT Digital Library

Artificially structured boundary plasma trap

This article presents a computer simulation of single-species non-neutral plasma confinement using an artificially structured boundary. The results support the prospect of developing plasma space-charge based confinement, with an unmagnetized plasma of one species of charged particles confined by an electric field produced by an edge-confined plasma of a second species of charged particles.
Date: September 20, 2019
Creator: Hedlof, R. M. & Ordonez, Carlos A.
System: The UNT Digital Library
K-shell x rays of selected elements from Nb through Gd for incident protons and alpha particles from 0.6 to 2.4 MeV (open access)

K-shell x rays of selected elements from Nb through Gd for incident protons and alpha particles from 0.6 to 2.4 MeV

This article discusses K-shell x-rays of selected elements from Nb through Gd for incident protons and alpha particles from 0.6 to 2.4 MeV.
Date: September 1977
Creator: Wilson, Scott R.; McDaniel, Floyd Del. (Floyd Delbert), 1942-; Rowe, J. R. & Duggan, Jerome L.
System: The UNT Digital Library
Nanotubes in Microwave Fields: Light Emission, Intense Heat, Outgassing, and Reconstruction (open access)

Nanotubes in Microwave Fields: Light Emission, Intense Heat, Outgassing, and Reconstruction

Article discussing nanotubes in microwave fields and light, emission, intense heat, outgassing, and reconstruction.
Date: September 27, 2003
Creator: Imholt, Timothy; Dyke, Christopher A.; Hasslacher, Brosl; Pérez, José M.; Price, D. W.; Roberts, James A. et al.
System: The UNT Digital Library
Long-range nonspreading propagation of sound beam through periodic layered structure (open access)

Long-range nonspreading propagation of sound beam through periodic layered structure

Article analyzing dispersion of sound in a solid-fluid layered structure and found a flex point on the isofrequency curve where D vanishes for given direction of propagation and frequency. Nonspreading propagation is experimentally observed in a water steel lattice of 75 periods (~1 meter long) and occurs in the regime of anomalous dispersion and strong acoustic anisotropy when the effective mass along periodicity is close to zero. Under these conditions the incoming beam experiences negative refraction of phase velocity leading to backward wave propagation. The observed effect is explained using a complete set of dynamical equations and our effective medium theory.
Date: September 2, 2020
Creator: Zubov, Yurii; Djafari-Rouhani, Bahram; Jin, Yuqi; Sofield, Mathew; Walker, Ezekiel; Neogi, Arup et al.
System: The UNT Digital Library
Advanced modeling of materials with PAOFLOW 2.0: New features and software design (open access)

Advanced modeling of materials with PAOFLOW 2.0: New features and software design

This article describes the recent re-design of the code and the new features and improvements in performance of PAOFLOW, a software tool that constructs tight-binding Hamiltonians from self-consistent electronic wavefunctions by projecting onto a set of atomic orbitals.
Date: September 2, 2021
Creator: Cesaroli, Frank T.; Supka, Andrew; Jayaraj, Anooja; Costa, Marcio; Siloi, Ilaria; SƂawiƄska, Jagoda et al.
System: The UNT Digital Library
Simulation of the formation of antihydrogen via magnetobound positronium (open access)

Simulation of the formation of antihydrogen via magnetobound positronium

This article simulates Antihydrogen formation involving magnetobound positronium by computing classical trajectories.
Date: September 9, 2021
Creator: Aguirre, F. F. & Ordonez, Carlos A.
System: The UNT Digital Library