Browsing Physics (Scholarly Publications) by Sponsor "Science Foundation Ireland (SFI)"
Now showing items 41-60 of 604
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Breakdown of counterflow superfluidity in a disordered quantum Hall bilayer
(2011)We present a theory for the regime of coherent interlayer tunneling in a disordered quantum Hall bilayer at total filling factor one, allowing for the effect of static vortices. We find that the system consists of domains ... -
Broadband saturable absorption and exciton-exciton annihilation in MoSe2 composite thin films
(2019)Polyvinyl alcohol (PVA) was utilized as a matrix to host two-dimensional (2D) liquid-phase-exfoliated MoSe2 nanosheets. These 2D MoSe2/PVA composite thin films were experimentally proven to be preferable for efficient ... -
Broadband ultrafast nonlinear absorption and nonlinear refraction of layered molybdenum dichalcogenide semiconductors
(2014)A series of layered molybdenum dichalcogenides, i.e. ,MoX 2 (X ¼ S, Se and Te), were prepared in cyclohexyl pyrrolidinone by a liquid-phase exfoliation technique. The high quality of the two-dimensional nanostructures ... -
Buckling of a linear chain of hard spheres in a harmonic confining potential: Numerical and analytical results for low and high compression
(2020)We extend a previous analysis of the buckling properties of a linear chain of hard spheres between hard walls under transverse harmonic confinement. Two regimes are distinguished—low compression, for which the entire chain ... -
Can soap films be used as models for mortality studies?
(2018)We report studies of the life expectancy of sets of parallel liquid films made from surfactant solution and contained in cylindrical perspex tubes. The tubes are sealed at the bottom and vertically placed. From our analysis ... -
Carbon nanotubes and nanotube composites for nonlinear optical devices
(2009)Carbon nanotubes possess not only outstanding mechanical, electrical and thermal properties but also unique nonlinear optical properties. In this Feature Article, we review the recent developments of the carbon nanotube ... -
Chapter 16: The structure of liquid foams
(CRC Press, 2018) -
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 ... -
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 ... -
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 ... -
A Commercial Conducting Polymer as Both Binder and Conductive Additive for Silicon Nanoparticle-Based Lithium-Ion Battery Negative Electrodes
(2016)This work describes silicon nanoparticle-based lithium-ion battery negative electrodes where multiple non-active electrode additives (usually carbon black and an inert polymer binder) are replaced with a single conductive ...