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Relaxation time approximations in PAOFLOW 2.0
Article presents the implementation of relaxation time approximation models in the calculation of Boltzmann transport in PAOFLOW 2.0 and applies those to model band-structures. In addition, using a self-consistent fitting of the model parameters to experimental conductivity data, the authors provide a flexible tool to extract scattering rates with high accuracy. They illustrate the approximations using simple models and then apply the method to GaAs, Si, Mg₃Sb₂, and CoSb₃.
Date:
March 23, 2022
Creator:
Jayaraj, Anooja; Siloi, Ilaria; Fornari, Marco & Buongiorno Nardelli, Marco
Object Type:
Article
System:
The UNT Digital Library
First-principles study of diffusion and interactions of hydrogen with silicon, phosphorus, and sulfur impurities in nickel
Article systematically studying the effect of Si, P, and S impurities on the diffusion and binding of an H atom in a face-centered-cubic (FCC) Ni lattice using density functional theory (DFT),
Date:
March 26, 2019
Creator:
Paranjape, Priyanvada; Gopal, Priya & Srinivasan, S. G.
Object Type:
Article
System:
The UNT Digital Library
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.
Object Type:
Article
System:
The UNT Digital Library
Giant cross-magnetic-field steps due to binary collisions between pair particles
Article explores giant cross-magnetic-field steps which occur as a result of positron-electron collisions. Within a constant magnetic field (e.g., 1 T), a collision between a positron and an electron can result in a correlated drift across the magnetic field for a continuous range of impact parameters. Within this range, drift distances orders of magnitude larger than that associated with like-charge collisions were observed by computer simulation.
Date:
March 5, 2015
Creator:
Aguirre, F. F. & Ordonez, Carlos A.
Object Type:
Article
System:
The UNT Digital Library
Self-Organized Temporal Criticality: Bottom-Up Resilience versus Top-Down Vulnerability
This article proposes a social model of spontaneous self-organization generating criticality and resilience, called Self-Organized Temporal Criticality (SOTC).
Date:
March 26, 2018
Creator:
Mahmoodi, Korosh; West, Bruce J. & Grigolini, Paolo
Object Type:
Article
System:
The UNT Digital Library
On social sensitivity to either zealot or independent minorities
This article uses the self-organized temporal criticality (SOTC) model to identify the timing of crucial events as a new mechanism with which to generate criticality, thereby establishing a way for the internal dynamics of the decision making process to suppresss the sensitivity of social opinion to either zealot or independent minorities.
Date:
March 27, 2018
Creator:
Mahmoodi, Korosh; Grigolini, Paolo & West, Bruce J.
Object Type:
Article
System:
The UNT Digital Library
Tunable Polymer-Based Sonic Structures
Patent relating to methods and devices for controlling the propagation of sound and particularly to tunable polymer-based sonic structures.
Date:
November 14, 2013
Creator:
Walker, Ezekiel; Neogi, Arup & Cai, Tong
Object Type:
Patent
System:
The UNT Digital Library
Improvement of Scratch and Wear Resistance of Polymers by Fillers Including Nanofillers
This article reviews approaches for improvement of tribological properties of polymers based on inclusion of fillers.
Date:
March 16, 2017
Creator:
Brostow, Witold, 1934-; Hagg Lobland, Haley E.; Hnatchuk, Nathalie & Pérez, José M.
Object Type:
Article
System:
The UNT Digital Library
Simulation of an aperture-based antihydrogen gravity experiment
This article presents a Monte Carlo simulation of an experiment that could potentially determine whether antihydrogen accelerates vertically up or down as a result of earth's gravity.
Date:
March 21, 2012
Creator:
Ordonez, Carlos A. & Hedlof, R. M.
Object Type:
Article
System:
The UNT Digital Library
Binary Microlensing Events from the MACHO Project
This article presents the light curves of 21 gravitational microlensing events from the first six years of the MACHO Project gravitational microlensing survey that are likely examples of lensing by binary systems.
Date:
March 27, 2000
Creator:
Alcock, C.; Allsman, R. A.; Alves, D.; Axelrod, T. S.; Baines, D.; Becker, A. C. et al.
Object Type:
Article
System:
The UNT Digital Library
Supernova 2002ap: the first month
This article reports the results of the first month of an intensive photometric and spectroscopic monitoring campaign of Supernova 2002ap.
Date:
March 27, 2002
Creator:
Gal-Yam, Avishay; Ofek, Efran & Shemmer, Ohad
Object Type:
Article
System:
The UNT Digital Library
PAH Emission and Star Formation in the Host of the z ~ 2.56 Cloverleaf QSO
This article reports the first detection of the 6.2 and 7.7 μm infrared polycyclic aromatic hydrocarbon emission features in the spectrum of a high-redshift QSO, from the Spitzer IRS spectrum of the Cloverleaf lensed QSO.
Date:
March 30, 2007
Creator:
Lutz, Dieter; Sturm, Eckhard; Tacconi, Linda; Valiante, Elisabetta; Schweitzer, Mario; Netzer, Hagai et al.
Object Type:
Article
System:
The UNT Digital Library
GRB 060505: A Possible Short-Duration Gamma-Ray Burst in a Star-Forming Region at a Redshift of 0.09
This article reports the discovery of the GRB optical afterglow and observations of its environment using Gemini South, the Hubble Space Telescope, Chandra, Swift, and the Very Large Array.
Date:
March 13, 2007
Creator:
Ofek, Efran; Cenko, Brad; Gal-Yam, Avishay; Fox, Derek B.; Nakar, Ehud; Rau, Arne et al.
Object Type:
Article
System:
The UNT Digital Library
Extreme Star Formation in the Host Galaxies of the Fastest Growing Supermassive Black Holes at z = 4.8
This article reports new Herschel observations of extremely luminous optically selected active galactic nuclei.
Date:
March 5, 2012
Creator:
Mor, Rivay; Netzer, Hagai; Trakhtenbrot, Benny; Shemmer, Ohad & Lira, Paulina
Object Type:
Article
System:
The UNT Digital Library
Monodisperse Thermo-Responsive Microgels of Poly(Ethylene Glycol) Analogue-Based Biopolymers, their Manufacture, and their Applications
Patent relating to monodisperse thermo-responsive microgels of poly(ethylene glycol) analogue-based biopolymers, their manufacture, and their applications.
Date:
July 14, 2009
Creator:
Hu, Zhibing; Cai, Tong; Chi, Chenglin & Marquez, Manuel
Object Type:
Patent
System:
The UNT Digital Library
Escherichia Coli CSRB Gene and RNA Encoded Thereby
Patent regarding the synthesis, uses and compositions of crystal hydrogels.
Date:
November 15, 2002
Creator:
Hu, Zhibing; Lu, Xihua; Gao, Jun; Cai, Tong; Huang, Gang & Zhou, Bo
Object Type:
Patent
System:
The UNT Digital Library
Synthesis, Uses and Compositions of Crystal Hydrogels
Patent relating to the synthesis, uses and compositions of crystal hydrogels.
Date:
November 15, 2002
Creator:
Hu, Zhibing; Lu, Xihua; Gao, Jun; Cai, Tong; Huang, Gang & Zhou, Bo
Object Type:
Patent
System:
The UNT Digital Library
Composition of Epoxy Resin, Aliphatic Amine Curing Agent and Halogenated Amine
Patent relating to the composition of epoxy resin, aliphatic amine curing agent and halogenated amine.
Date:
April 12, 2005
Creator:
Bilyeu, Bryan; Brostow, Witold, 1934- & Menard, Kevin P.
Object Type:
Patent
System:
The UNT Digital Library
First-Principles Theory of Correlated Transport through Nanojunctions
Article on the first-principles theory of correlated transport through nanojunctions.
Date:
March 25, 2005
Creator:
Ferretti, A.; Calzolari, Arrigo; Di Felice, R.; Manghi, F.; Caldas, Marilia J.; Buongiorno Nardelli, Marco et al.
Object Type:
Article
System:
The UNT Digital Library
Dynamic Conductance of Carbon Nanotubes
Article on dynamic conductance of carbon nanotubes.
Date:
March 27, 2000
Creator:
Roland, Christopher; Buongiorno Nardelli, Marco; Wang, Jian & Guo, Hong
Object Type:
Article
System:
The UNT Digital Library
Intrinsic electrical transport properties of monolayer silicene and MoS₂ from first principles
Article on intrinsic electrical transport properties of monolayer silicene and MoS₂ from first principles.
Date:
March 15, 2013
Creator:
Li, Xiaodong; Mullen, Jeffrey T.; Jin, Zhenghe; Borysenko, Kostyantyn M.; Buongiorno Nardelli, Marco & Kim, Ki Wook
Object Type:
Article
System:
The UNT Digital Library
Ultimate strength of carbon nanotubes: A theoretical study
Article on a theoretical study of the ultimate strength of carbon nanotubes.
Date:
March 27, 2002
Creator:
Zhao, Qingzhong; Buongiorno Nardelli, Marco & Bernholc, Jerry
Object Type:
Article
System:
The UNT Digital Library
First-principles analysis of electron-phonon interactions in graphene
Article on first-principles analysis of electron-phonon interactions in graphene.
Date:
March 16, 2010
Creator:
Borysenko, Kostyantyn M.; Mullen, Jeffrey T.; Barry, E. A.; Paul, S.; Semenov, Yuriy G.; Zavada, J. M. et al.
Object Type:
Article
System:
The UNT Digital Library
Strain effects on the interface properties of nitride semiconductors
Article on the strain effects on the interface properties of nitride semiconductors.
Date:
March 15, 1997
Creator:
Buongiorno Nardelli, Marco; Rapcewicz, Krzysztof & Bernholc, Jerry
Object Type:
Article
System:
The UNT Digital Library