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Now showing items 581-590 of 2111
Mapping of Low-Frequency Raman Modes in CVD-Grown Transition Metal Dichalcogenides: Layer Number, Stacking Orientation and Resonant Effects
(2016)
Layered inorganic materials, such as the transition metal dichalcogenides (TMDs), have attracted much attention due to their exceptional electronic and optical properties. Reliable synthesis and characterization of these ...
Site-specific magnetism of half-metallic Mn2RuxGa thin films determined by x-ray absorption spectroscopy
(2015)
The site-specific magnetic properties of thin films of the Heusler compound Mn2RuxGa, 0.6 <x< 1.0, are
studied using x-ray absorption and dichroism spectroscopy. There is evidence of half metallicity up to x = 0.7,
and ...
Young brown dwarfs and their environments : testing star and planet formation
(Trinity College (Dublin, Ireland). School of Physics, 2014)
This thesis presents a new contribution to our understanding of the formation of brown dwarfs. From a description of their discovery, to an analysis of their disks and photospheres, it sheds new light on the conditions ...
Graphene-MoS<inf>2</inf> nanosheet composites as electrodes for dye sensitised solar cells
(2016)
the platinum counter electrode in Dye-Senstized Solar Cells with a cheaper material has attracted much attention recently. Graphene, graphene oxide and other 2-dimensional materials have received significant attention. ...
Poly(5-tert-butyl)benzothiophene: a soluble form of polyisothianaphthene with a large nonlinear optical response
(1998)
A soluble form of polybenzothiophene has been produced and chemically characterised. NMR spectroscopy
indicates that there is a large quinoidal character contribution to the ground state of the polymer. The third ...
Comparative study of beam-induced carbonaceous deposits in helium-ion and scanning electron microscopes.
(Trinity College Dublin. School of Physics. Discipline of Physics, 2018)
In this work, the phenomena of beam-induced contamination in charged beam microscopes (i.e. the scanning electron microscope (SEM) and helium ion microscope (HIM)) was investigated in order to determine its influence on ...
Designing a fully compensated half-metallic ferrimagnet
(2016)
Recent experimental work on Mn
2
Ru
x
Ga demonstrates its potential as a compensated ferrimagnetic half metal
(CFHM). Here we present a set of high-throughput
ab initio
density functional theory calculations and a ...
A simple experimental system to illustrate the nonlinear properties of a linear chain under compression.
(2020)
A linear chain of spheres confined by a transverse harmonic potential experiences localized buckling under compression. We present simple experiments using gas bubbles in a liquid-filled tube to demonstrate this phenomenon. ...
Surface studies of (110) terminated FE304 and SRTI03
(Trinity College Dublin. School of Physics. Discipline of Physics, 2018)
In this thesis the surface reconstructions of (110) terminated single crystalline magnetite and strontium titanate are investigated by a host of surface region sensitive techniques, foremost of those being scanning tunneling ...