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Preparation, characterisation and technological applications of half-metallic ferromagnetic oxides in ceramic and thin film form
(Trinity College (Dublin, Ireland). School of Physics, 2001)
The aims of this study were: (i) to study the structural, magnetic and transport properties of ferromagnetic oxides (La0.7 Sr0.3)MnO3 and A2FeMoO6 (A=Ca, Sr, Ba) in polycrystalline and thin film form, (ii) to optimise the ...
The far-ultraviolet spectrum of NGC 4151 as observed with the Hopkins ultraviolet telescope on Astro-2
(American Astronomical Society, 1995)
We observed NGC 4151 on six separate occasions at intervals of 1 to 3 days using the Hopkins Ultraviolet Telescope during the flight of Astro-2 aboard the space shuttle Endeavour in 1995 March. The far-UV spectra cover the ...
Vortex states of a disordered quantum Hall bilayer
(2009)
We present and solve a model for the vortex configuration of a disordered quantum Hall bilayer in the limit
of strong and smooth disorder. We argue that there is a characteristic disorder strength below which vortices
will ...
Ab initio treatment of noncollinear spin systems within the atomic-sphere approximation and beyond
(American Physical Society, 2000)
The properties of noncollinear magnets are often calculated within the framework of density-functional
theory in local-spin-density approximation with the additional use of the atomic-sphere approximation for the
spin ...
Variational pseudo-self-interaction-corrected density functional approach to the ab initio description of correlated solids and molecules
(2011)
We present a variational pseudo self-interaction correction density functional approach (VPSIC) to the ab initio theoretical description of correlated solids and molecules. The approach generalizes previous nonvariational ...
Method to improve the noise figure and saturation power in multi-contact semiconductor optical amplifiers: simulation and experiment
(2013)
The consequences of tailoring the longitudinal carrier density along the active layer of a multi-contact bulk semiconductor optical amplifier (SOA) are investigated using a rate equation model. It is shown that both the ...
Photoresponsivity enhancement in monolayer MoS<inf>2</inf> by rapid O<inf>2</inf>:Ar plasma treatment
(2019)
We report up to ten-fold enhancement of the photoresponsivity of monolayer molybdenum disulfide (MoS2) by treatment with O2:Ar (1:3) plasma. We characterize the surface of plasma-exposed MoS2 by TEM, Raman, and PL mapping ...
Feature issue introduction: nanocarbon for photonics and optoelectronics
(Optical Society of America, 2012)
Nanocarbons possess a variety of nearly ideal, low-dimensional nanostructures that cause them to attain unique electronic and optical properties. Recent linear and nonlinear spectroscopic and optoelectronic results prove ...
Electronic transport studies of highly-polarized compensated ferrimagnetic thin films: Mn2RuxGa
(Trinity College Dublin. School of Physics. Discipline of Physics, 2022)
Abstract
Modern day information technologies not only rely on miniaturization and densification of data processing and data storage, but also on fast data transmitters and receivers. Current CMOS based technologies are ...