Browsing Physics (Scholarly Publications) by Title
Now showing items 367-386 of 1721
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Eclipse observations of high-frequency oscillations in active region coronal loops
(EDP Sciences, 2003)One of the mechanisms proposed for heating the corona above solar active regions is the damping of magnetohydrodynamic (MHD) waves. Continuing on previous work, we provide observational evidence for the existence of ... -
Edge and confinement effects allow in situ measurement of size and thickness of liquid-exfoliated nanosheets
(2014)Two-dimensional nanomaterials such as MoS2 are of great interest both because of their novel physical properties and their applications potential. Liquid exfoliation, an important production method, is limited by our ... -
Edge superconductivity in multilayer WT<inf>e2</inf>Josephson junction
(2020)WTe2, as a type-IIWeyl semimetal, has 2D Fermi arcs on the (001) surface in the bulk and 1D helical edge states in its monolayer. These features have recently attracted wide attention in condensed matter physics. However, ... -
Effect of a ferromagnetic STM cobalt tip on a single Co-phthalocyanine molecule adsorbed on a ferromagnetic substrate
(2021)The effect of a ferromagnetic scanning tunneling microscope (STM) cobalt tip on the electronic, magnetic and electronic transport properties of a Co-phthalocyanine (CoPc)/Co(111) junction has been investigated in the ... -
Effect of Catalyst Diameter on Vapour-Liquid-Solid Growth of GaAs Nanowires
(2014)GaAs nanowires were grown on (111)B GaAs substrates using the vapour-liquid-solid mechanism. The Au/Pt nanodots used to catalyse wire growth were defined lithographically and had varying diameter and separation. An in-depth ... -
Effect of Chemical Precursors On the Optical and Electrical Properties of p‐Type Transparent Conducting Cr2O3:(Mg,N)
(2013)Cr2O3:(Mg,N) has been reported as a p-type transparent conducting oxide. In this contribution the effect of each precursor used for the deposition by spray-pyrolysis, will be explored and their role in determining the ... -
Effect of Coulomb enhancement on optical gain in (Zn,Cd)Se/ZnSe multiple quantum wells
(American Physical Society, 1997)The optical-gain spectra of a 40-? (Zn,Cd)Se/ZnSe multiple quantum well has been measured at various temperatures using a variable-stripe method. By comparison with a gain calculation including many-body effects, we have ... -
The effect of deposition power on the electrical properties of Al-doped zinc oxide thin films
(2010)We investigated the effect on the electronic properties of aluminum (Al)-zinc oxide (ZnO) films by modulating the radio frequency sputtering power. Our experimental results show that increasing the sputtering power increases ... -
Effect of epitaxial strain on the cation distribution in spinel ferrites CoFe(2)O(4) and NiFe(2)O(4): A density functional theory study
(American Institute of Physics, 2011)The effect of epitaxial strain on the cation distribution in spinel ferrites CoFe(2)O(4) and NiFe(2)O(4) is investigated by GGA+U total energy calculations. We obtain a very strong (moderate) tendency for cation inversion ... -
Effect of epitaxial strain on the spontaneous polarization of thin film ferroelectrics
(American Physical Society, 2005)Epitaxial strain can substantially enhance the spontaneous polarizations and Curie temperatures of ferroelectric thin films compared to the corresponding bulk materials. In this Letter we use first principles calculations ... -
Effect of Hubbard U on the construction of low-energy Hamiltonians for LaMnO(3) via maximally localized Wannier functions
(American Physical Society, 2011)We use maximally localized Wannier functions to construct tight-binding (TB) parametrizations for the e(g) bands of LaMnO(3) based on first-principles electronic structure calculations. We compare two different ways to ... -
Effect of insertion layer on electrode properties in magnetic tunnel junctions with a zero-moment half-metal
(2019)Due to its negligible spontaneous magnetization, high spin polarization and giant perpendicular magnetic anisotropy, Mn2RuxGa (MRG) is an ideal candidate as an oscillating layer in THz spin-transfertorque nano-oscillators. ... -
The effect of magnetic annealing on barrier asymmetry in Co40Fe40B20/MgO magnetic tunnel junctions
(2010)We demonstrate that high-quality magnetic tunnel junctions with Co40Fe40B20 electrodes and crystalline MgO barriers, which show a 230% tunneling magnetoresistance ratio at room temperature, can be successfully fabricated ... -
Effect of metal nanoparticle concentration on localized surface plasmon mediated Förster resonant energy transfer
(2012)The influence of gold nanoparticle concentration on signatures of localized surface plasmon mediated Förster resonant energy transfer is investigated in a quantum dot–gold nanoparticle sandwich structure. At lower gold ... -
Effect of molecular conformations on the electronic transport in oxygen-substituted alkanethiol molecular junctions
(2018)The relationship between the molecular structure and the electronic transport properties of molecular junctions based on thiol-terminated oligoethers, which are obtained by replacing every third methylene unit in the ... -
Effect of motion on the quantification accuracy of whole-body DWIBS
(2012)Background & Methods: Diffusion-weighted whole-body imaging with background body signal subtraction (DWIBS) was introduced as a qualitative approach to detecting metastases in the body. A liver-mimicking phantom with ... -
The Effect of Network Formation on the Mechanical Properties of 1D:2D Nano:Nano Composites
(2018)Mixtures of 1D carbon nanotubes and 2D nanosheets are important in electrochemical applications where the nanosheets are the active material, while the nanotubes provide electrical conductivity and mechanical reinforcement. ... -
Effect of percolation on the capacitance of supercapacitor electrodes prepared from composites of manganese dioxide nanoplatelets and carbon nanotubes
(2014)Here we demonstrate significant improvements in the performance of supercapacitor electrodes based on 2D MnO2 nano-platelets by the addition of carbon nanotubes. Electrodes based on MnO2 nano-platelets do not display high ... -
Effect of self-defocusing in thin films of close-packed CdS nanocrystals
(World Scientific, 1999)
