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Long-range current-induced spin accumulation in chiral crystals
Article states that chiral materials, similarly to human hands, have distinguishable right-handed and left-handed enantiomers which may behave differently in response to external stimuli, so for the first time the authors use an approach based on the density functional theory (DFT)+PAOFLOW calculations to quantitatively estimate the so-called collinear Rashba–Edelstein effect (REE) that generates spin accumulation parallel to charge current and can manifest as chirality-dependent charge-to-spin conversion in chiral crystals. The authors reveal that the spin accumulation induced in the bulk by an electric current is intrinsically protected by the quasi-persistent spin helix arising from the crystal symmetries present in chiral systems with the Weyl spin–orbit coupling.
Date:
November 18, 2022
Creator:
Roy, Arunesh; Cerasoli, Frank T.; Jayaraj, Anooja; Tenzin, Karma; Buongiorno Nardelli, Marco & Sławińska, Jagoda
System:
The UNT Digital Library
Tuning the decay of sound in a viscous metamaterial
Authors of the article use analytical results for viscous dissipation in phononic crystals to calculate the decay coefficient of a sound wave propagating at low frequencies through a two-dimensional phononic crystal with a viscous fluid background. They claim that the decay coefficient exhibits dependence on the direction of propagation; that is, a homogenized phononic crystal behaves like an anisotropic viscous fluid.
Date:
October 10, 2022
Creator:
Ibarias, M.; Doporto, J.; Krokhin, Arkadii A. & Arriaga, J.
System:
The UNT Digital Library
Growth of Highly-Ordered Metal Nanoparticle Arrays in the Dimpled Pores of an Anodic Aluminum Oxide Template
Article presents a reliable, scalable, and inexpensive technology for the fabrication of ordered arrays of metal nanoparticles with large areal coverage on various substrates. Using a simple model, the experimental results were interpreted and supported by numerical estimations.
Date:
November 8, 2022
Creator:
Farmer, Gavin; Abraham, James; Littler, Chris; Syllaios, A. J. & Philipose, Usha
System:
The UNT Digital Library
Analyzing the Bolometric Performance of Vanadium Oxide Thin Films Modified by Carbon Nanotube Dispersions
Article investigates the influence of carbon nanotube (CNT) dispersions on the electrical properties and noise signal amplitude of 𝑉𝑂𝑥 films. The results presented in this work provide a better understanding of 𝑉𝑂𝑥-based composites, thereby enabling the development of new, versatile and functional materials for device applications.
Date:
February 12, 2023
Creator:
Philipose, Usha; Littler, Chris; Jiang, Yan; Naciri, Alia; Harcrow, Michael & Syllaios, A. J.
System:
The UNT Digital Library
Evolutionary models of lateralization: Steps toward stigmergy?
Article discusses an interesting approach to accounting for brain and behavioral asymmetry based on competition and cooperation in phenotypically asymmetric individuals. The model in question shows, in an almost fully analytical way, that under proper conditions, there exists an unequal number of equilibrium of left-and right-lateralized individuals.
Date:
February 2, 2023
Creator:
Tonello, Lucio & Vallortigara, Giorgio
System:
The UNT Digital Library
Unusual Mathematical Approaches Untangle Nervous Dynamics
Article reports that the massive amount of available neurodata suggests the existence of a mathematical backbone underlying neuronal oscillatory activities. The authors assert that the Monge’s theorem might contribute to our visual ability of depth perception and the brain connectome can be tackled in terms of tunnelling nanotubes.
Date:
October 14, 2022
Creator:
Tozzi, Arturo & Mariniello, Lucio
System:
The UNT Digital Library
An X-ray fading, UV brightening QSO at z ≈ 6
Article presents quasi-simultaneous X-ray and rest-frame UV observations of quasi-stellar object (QSO) z = 6.025 QSO J1641+3755.
Date:
July 26, 2022
Creator:
Vito, F.; Mignoli, M.; Gilli, R.; Brandt, William Nielsen; Shemmer, Ohad; Bauer, Franz E. et al.
System:
The UNT Digital Library
Weakly Aligned Molecules: From Molecular Detectors to Room-Temperature Tunable Masers
Conference proceeding presenting a new mechanism of manipulation of population in molecular rotational levels in a weakly aligned molecules. Originally presented as an invited talk at the 29th International Laser Physics Workshop held July 19-23, 2021.
Date:
July 23, 2021
Creator:
Roy, Colin D.; Branković, Zorica & Rostovtsev, Yuri V.
System:
The UNT Digital Library
Exploring Changes in Quasar Spectral Energy Distributions across C iv Parameter Space
This article examines the UV/X-ray properties of 1378 quasars in order to link empirical correlations to theoretical models of the physical mechanisms dominating quasars as a function of mass and accretion rate.
Date:
June 6, 2022
Creator:
Rivera, Angelica B.; Richards, Gordon T.; Gallagher, Sarah C.; McCaffrey, Trevor V.; Rankine, Amy L.; Hewett, Paul C. et al.
System:
The UNT Digital Library
Can X-Ray Observations Improve Optical-UV-based Accretion-rate Estimates for Quasars?
Article presents a study utilizing a carefully selected sample of 53 radio-quiet quasars that have Hβ and C iv λ1549 spectroscopy as well as Chandra coverage, to search for a robust accretion-rate indicator for quasars, particularly at the highest-accessible redshifts (z ∼ 6–7).
Date:
May 23, 2022
Creator:
Marlar, Andrea
System:
The UNT Digital Library
Numerical Investigation of Dynamical and Morphological Trends in Relativistic Jets
Article investigates the connection of kiloparsec scale AGN jet properties to their intrinsic parameters and surroundings. This is the accepted manuscript version of the article.
Date:
August 2022
Creator:
Mandal, Soham; Duffell, Paul C. & Li, Yuan
System:
The UNT Digital Library
Laser Diffraction Zones and Spots from Three-Dimensional Graded Photonic Super-Crystals and Moiré Photonic Crystals
This article reports the holographic fabrication of three types of 3D graded photonic super-crystals (GPSCs) through nine beam interferences and their characteristic diffraction patterns.
Date:
June 3, 2022
Creator:
Hurley, Noah; Kamau, Steve; Alnasser, Khadijah; Philipose, Usha; Cui, Jingbiao & Lin, Yuankun
System:
The UNT Digital Library
Detection of Pancreatic Cancer miRNA with Biocompatible Nitrogen-Doped Graphene Quantum Dots
Article detects the presence of a specific pancreatic cancer-derived miRNA (pre-miR-132) using the fluorescence properties of biocompatible nitrogen-doped graphene quantum dots (NGQDs) synthesized using a bottom-up approach from a single glucosamine precursor. This non-invasive approach allows cancer-specific miRNA detection to facilitate early diagnosis of various forms of cancer.
Date:
August 20, 2022
Creator:
Ajgaonkar, Ryan; Lee, Bong; Valimukhametova, Alina; Nguyen, Steven; Gonzalez-Rodriguez, Roberto; Coffer, Jeffery et al.
System:
The UNT Digital Library
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
System:
The UNT Digital Library
Polymeric Coatings for Skutterudite-Based Thermoelectric Materials
Article is a study with the main objective of mitigation of thermal degradation of skutterudite-based thermoelectric materials—so as to extend the service life of those materials and make them more attractive for industry from the economical perspective. Significant mitigation of oxidation and sublimation of thermoelectric (TE) materials was achieved.
Date:
February 17, 2022
Creator:
Brostow, Witold, 1934-; Chen, Ikang & Hagg Lobland, Haley E.
System:
The UNT Digital Library
Momentum-Space Spin Antivortex and Spin Transport in Monolayer Pb
This article finds a nontrivial spin texture, spin antivortex, can appear at certain momenta on the Γ− K line in a 2D monolayer Pb on top of SiC.
Date:
April 21, 2022
Creator:
Yang, Kaijie; Wang, Yuanxi & Liu, Chao-Xing
System:
The UNT Digital Library
Connecting Low- and High-redshift Weak Emission-line Quasars via Hubble Space Telescope Spectroscopy of Lyα Emission
Article presents ultraviolet spectroscopy covering the Lyα + N v complex of six candidate low-redshift (0.9 < z < 1.5) weak emission-line quasars (WLQs) based on observations with the Hubble Space Telescope.
Date:
April 14, 2022
Creator:
Paul, Jeremiah D.; Plotkin, Richard M.; Shemmer, Ohad; Anderson, Scott F.; Brandt, W. N.; Fan, Xiaohui et al.
System:
The UNT Digital Library
Optimization of the Observing Cadence for the Rubin Observatory Legacy Survey of Space and Time: A Pioneering Process of Community-focused Experimental Design
This article is part of a Focus Issue on the topic of Rubin LSST Survey Strategy Optimization. The motivation, history, and decision-making process of the observing strategy optimization are detailed, giving context to the science-driven proposals and recommendations for the survey strategy included in this Focus Issue.
Date:
December 22, 2021
Creator:
Bianco, Federica B.; Ivezić, Željko; Jones, R. Lynne; Graham, Melissa L.; Marshall, Phil; Saha, Abhijit et al.
System:
The UNT Digital Library
The allometric propagation of COVID-19 is explained by human travel
Article develops an allometric model capable of fitting the initial phase of the COVID-19 pandemic and predicting the propagation of the illness for up to 100 days.
Date:
December 18, 2021
Creator:
Tuladhar, Rohisha; Grigolini, Paolo & Santamaria, Fidel
System:
The UNT Digital Library
Two-Layer High-Throughput: Effective Mass Calculations Including Warping
Article performing and analyzing two-layer high-throughput calculations.
Date:
February 26, 2022
Creator:
Supka, Andrew; Mecholsky, Nicholas A.; Buongiorno Nardelli, Marco; Curtarolo, Stefano & Fornari, Marco
System:
The UNT Digital Library
Ice imaging in aircraft anti-icing fluid films using polarized light
Article presents how to enhance ice contrast in the visible spectrum by using ice birefringence and polarized light reflection. The method can be used for both visual inspection and automatic ice detection systems.
Date:
December 13, 2021
Creator:
Grishaev, Viktor G.; Usachev, Igor A.; Drachev, Vladimir P.; Gattarov, Ramil K.; Rudenko, Nadezhda I.; Amirfazli, Alidad et al.
System:
The UNT Digital Library
Electrodynamics of superlattices with ultra-thin metal layers: quantum Landau damping and band gaps with nonzero density of states
This article develops a theory of electromagnetic transmission through dielectric-metal superlattices with ultra-thin metal films, in which electron motion in the direction perpendicular to the metal surfaces is quantized.
Date:
October 16, 2018
Creator:
Castillo-López, S. G.; Krokhin, Arkadii A.; Makarov, N. M. & Pérez-Rodríguez, F.
System:
The UNT Digital Library
Amplification of photoacoustic effect in bimodal polymer particles by self-quenching of indocyanine green
This article presents a new type of bimodal contrast agent that is based on the self-quenching of indocyanine green (ICG) encapsulated in a biocompatible and biodegradable polymer shell.
Date:
August 23, 2019
Creator:
Mokrousov, Maksim D.; Novoselova, Marina V.; Nolan, Jackie; Harrington, Walter; Rudakovskaya, Polina; Bratashov, Daniil N. et al.
System:
The UNT Digital Library
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