Browsing Physics (Scholarly Publications) by Title
Now showing items 159-178 of 1694
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Charge dynamics in the half-metallic ferromagnet CrO2
(American Physical Society, 1999)Infrared spectroscopy is used to investigate the electronic structure and charge carrier relaxation in crystalline films of CrO2 which is the simplest of all half-metallic ferromagnets. Chromium dioxide is a bad metal at ... -
Charge freezing and surface anisotropy on magnetite (100)
(1993)Scanning tunneling microscope images of the (100) surface of slightly nonstoichiometric magnetite taken at room temperature show static arrays of pairs of Fe2+ ions with short?range order, and a charge fluctuation time ... -
Charge ordering on the surface of Fe3O4(001)
(2002)We have studied the (001) surface of a Fe3O4 single crystal using scanning tunneling microscopy (STM), low-energy electron diffraction (LEED), and Auger electron spectroscopy. A clean surface was obtained by a combination ... -
Charge transfer energies of benzene physisorbed on a graphene sheet from constrained density functional theory
(2016)Constrained density functional theory (CDFT) is used to evaluate the energy level alignment of a benzene molecule as it approaches a graphene sheet. Within CDFT the problem is conveniently mapped onto evaluating total ... -
Charge transport effects in field emission from carbon nanotube-polymer composites
(American Institute of Physics, 2006)Electron field emission measurements have been made on multiwall arc discharge carbon nanotubes embedded in a conjugated polymer host. Electron emission at low nanotube content is observed and attributed to an enhancement ... -
Charge transport effects in field emission from carbon nanotube-polymer composites
(Elsevier, 2005)Electron field emission measurements have been made on multiwall arc discharge carbon nanotubes embedded in a conjugated polymer host. Electron emission at low nanotube content is observed and attributed to an enhancement ... -
Charge-Transfer and Non-Rigid-Band Effects in the Graphite Compound LiC6
(1981)A comparison of angle-resolved photoemission energy distributions for pure graphite and the intercalation compound LiC6 show that considerable charge is transferred from Li to C, as expected; but the valence bands do not ... -
Chiral Ag nanostructure arrays as optical antennas
(2015)Directional and circularly polarised emission from quantum dots coupled with chiral Ag nanostructures has been demonstrated. Semiconductor quantum dots were deposited onto the chiral structures using the Layer-by-Layer ... -
Chirality of electrodeposits grown in a magnetic field
(American Physical Society, 2004)Electrodeposits grown around a point cathode in a flat, horizontal electrochemical cell have fractal form. When grown in the presence of a perpendicular applied magnetic field, the deposits develop a spiral structure with ... -
Chladni Figures Revisited based on Nanomechanics
(2007)Chladni patterns based on nanomechanics in the microfluidic environment are presented. In contrast with the macroscopic observations in the gaseous environment, nanoparticles are found to move to the nodes, whereas ... -
Chromatic dispersion monitoring for high-speed WDM systems using two-photon absorption in a semiconductor microcavity
(2009)This paper presents a theoretical and experimental investigation into the use of a two-photon absorption (TPA) photodetector for use in chromatic dispersion (CD) monitoring in high-speed, WDM network. In order to overcome ... -
Chromatic dispersion monitoring of 80 Gbps OTDM data signal via two-photon absorption in a semiconductor microcavity
(2007)In this letter, a novel method of chromatic dispersion monitoring via two-photon absorption (TPA) is investigated. A specially designed semiconductor microcavity is employed as a TPA detector for monitoring ... -
Cluster expansion constructed over Jacobi-Legendre polynomials for accurate force fields
(2023)We introduce a compact cluster expansion method constructed over Jacobi and Legendre polynomials to generate highly accurate and flexible machine-learning force fields. The constituent many-body contributions are separated, ... -
CMEs in the Heliosphere: II. A Statistical Analysis of the Kinematic Properties Derived from Single-Spacecraft Geometrical Modelling Techniques Applied to CMEs Detected in the Heliosphere from 2007 to 2017 by STEREO/HI-1
(2019)Recent observations with the Heliospheric Imagers (HIs) onboard the twin NASA Solar Terrestrial Relations Observatory (STEREO) spacecraft have provided unprecedented observations of a large number of coronal mass ejections ... -
CMOS-compatible multi-band plasmonic TE-pass polarizer
(2018)A CMOS-compatible plasmonic TE-pass polarizer capable of working in the O, E, S, C, L, and U bands is numerically analyzed. The device is based on an integrated hybrid plasmonic waveguide (HPW) with a segmented metal design. ... -
Coercivity mechanism of melt-spun Sm(Fe11Ti)
(IEEE, 1990)Hysteresis loops of randomly oriented grains with uniaxial anisotropy were computed on the basis of an array of 27 Wigner-Seitz cells representing crystallites which interact by exchange coupling at the grain boundaries. ... -
Coexistance of Giant Tunneling Electroresistance and Magnetoresistance in an All-Oxide Composite Magnetic Tunnel Junction
(2012)We propose, by performing advanced ab initio electron transport calculations, an all-oxide composite magnetic tunnel junction, within which both large tunneling magnetoresistance (TMR) and tunneling electroresistance ...