Browsing Physics (Scholarly Publications) by Title
Now showing items 1514-1533 of 1691
-
Surface Plasmon Enhanced Energy Transfer between Donor and Acceptor CdTe Nanocrystal Quantum Dot Monolayers
(2011)Surface plasmon enhanced Förster resonant energy transfer (FRET) between CdTe nanocrystal quantum dots (QDs) has been observed in a multilayer acceptor QD–gold nanoparticle–donor QD sandwich structure. Compared to a ... -
Surface plasmon enhanced F?rster resonance energy transfer between the CdTe quantum dots
(2008)Forster resonance energy transfer (FRET) between CdTe quantum dots (QDs) at nanoscale proximity to gold nanoparticle (Au NP) layers is investigated experimentally. We have observed the enhancement in the acceptor QDs' ... -
Surface plasmon on topological insulator/dielectric interface enhanced ZnO ultraviolet photoluminescence
(2012)It has recently been predicted that the surface plasmons are allowed to exist on the interface between a topological insulator and vacuum. Surface plasmons can be employed to enhance the optical emission from various ... -
Surfing Multiple Conformation-Property Landscapes via Machine Learning: Designing Single-Ion Magnetic Anisotropy
(2020)Computational statistical disciplines, such as machine learning, are leading to a paradigm shift in the way we conceive the design of new compounds, offering a way to directly design the best compound for specific applications. ... -
The SWAP EUV Imaging Telescope Part I: Instrument Overview and Pre-Flight Testing
(2013)The Sun Watcher with Active Pixels and Image Processing (SWAP) is an EUV solar telescope on board ESA?s Project for Onboard Autonomy 2 (PROBA2) mission launched on 2 November 2009. SWAP has a spectral band- pass centered ... -
Swift heavy ion irradiation-induced modifications in structural, magnetic and electrical transport properties of epitaxial magnetite thin films
(2006)The effect of swift heavy ion SHI irradiation 190 MeV Ag on structural, electrical transport and magnetic properties of epitaxial magnetite Fe3O4 thin films thickness 70 nm grown on MgO 100 oriented substrate ... -
Switching a single spin on metal surfaces: ab initio studies
(2009)The exchange coupling between single 3 d magnetic adatoms (Cr, Mn, Fe, and Co) adsorbed on a Cu(001) surface and a Cr STM tip is studied with ab initio calculations. We demonstrate that the spin direction of single ... -
Symmetric photonic molecules formed from coupled microspheres
(SPIE, 2008)Coherent coupling of optical resonances in spherical microcavities results in the formation of so called photonic molecules. The name originates from the analogy to chemical molecules. The coupled optical modes are similar ... -
Symmetry-dependent electron-electron interaction in coherent tunnel junctions resolved by measurements of zero-bias anomaly
(2014)We provide conclusive experimental evidence that zero-bias anomaly in the differential resistance of magnetic tunnel junctions is due to electron-electron interaction (EEI), clarifying a longstanding issue. The magnon ... -
Synchronization in disordered oscillator lattices: Nonequilibrium phase transition for driven-dissipative bosons
(2021)We show that lattices of phase oscillators with random natural frequencies undergo a transition from a desynchronized to a synchronized state for dimensions d<4. The oscillators are described by a generalization of the ... -
Syntheses of Complex Mesoporous Silicas Using Mixtures of Nonionic Block Copolymer Surfactants: Understanding Formation of Different Structures Using Solubility Parameters
(Elsevier, 2010)The use of block copolymer (BCP) nonionic surfactant mixtures (including Pluronic, Brij and Tetronic types) as templates for synthesizing porous silica materials of mixed pore sizes is explored here. These systems have ... -
Synthesis and strong optical limiting response of graphite oxide covalently functionalized with gallium phthalocyanine
(Institute of Physics, 2011)A soluble graphite oxide (GO) axially substituted gallium phthalocyanine (PcGa) hybrid material (GO?PcGa) was for the first time synthesized by the reaction of tBu4PcGaCl with GO in anhydrous DMSO at 110 ?C in the presence ... -
Synthesis, characterization and magnetic properties of ultrafine Co<inf>3</inf>O<inf>4</inf> octahedra
(2015)Octahedral Co3O4 nanoparticles were synthesised in an aqueous ammonia solution using hexagonal β-Co(OH)2 nanoplates as starting materials. Electron microscopy analysis indicates that the Co3O4 particles have diameters of ... -
Synthesis, electrical and magnetotransport properties of polypyrrole-MWCNT nanocomposite
(2012)The present work describes the preparation of nanocomposites in which the multiwall carbon nanotubes (MWCNT) have been mixed with conducting polypyrrole (PPy) via an in situ chemical oxidative preparation method. To reveal ... -
The systemic redshift of the quasar 1331 + 170
(American Astronomical Society, 1991)Infrared spectra covering the 1.6- and 2-micron regions of the quasar 1331 + 170, redshift z = 2.09, were obtained with the CGS4 spectrometer at the UK Infrared Telescope. These spectra show redshifted H-alpha, H-beta, and ... -
Tailoring highly conductive graphene nanoribbons from small polycyclic aromatic hydrocarbons: a computational study
(2013)Pyrene, the smallest two-dimensional mesh of aromatic rings, with various terminal thiol substitutions, has been considered as a potential molecular interconnect. Charge transport through two terminal devices has been ...
