Browsing School of Physics by Sponsor "Irish Research Council (IRC)"
Now showing items 1-20 of 64
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2D foams above the jamming transition: Deformation matters
(2017)Jammed soft matter systems are often modelled as dense packings of overlapping soft spheres, thus ignoring particle deformation. For 2D (and 3D) soft disks packings, close to the critical packing fraction ϕc, this results ... -
Atomic Diffusion and Pulsation in Post-Common-Envelope Binary Stars
(Trinity College Dublin. School of Physics. Discipline of Physics, 2020)I study the evolution of peculiar low-mass, evolved stars. Two groups of interest are the core-helium-burning hot subdwarfs and the shell-hydrogen-burning low-mass pre-white dwarfs. Stars in both groups have had previous ... -
Characterising Pulsars with Low-Frequency Software Telescopes
(Trinity College Dublin. School of Physics. Discipline of Physics, 2024)Pulsars are a class of rapidly rotating neutron stars that periodically provide detectable emission in the direction of the Earth, where it can be detected by telescopes across the electromagnetic spectrum. These husks of ... -
Computational and Experimental Study of Optical properties of TiO2 Arrays Fabricated via Soft Nanoimprint Lithography
(Trinity College Dublin. School of Physics. Discipline of Physics, 2021)In this thesis the optical properties of large 1 mm2 titanium oxide (TiO2) nanoarrays and the interactions with Rhodamine 6G are studied computationally and experimentally. Three TiO2 arrays with different particle size ... -
Conducting mechanism in the epitaxial p-type transparent conducting oxide Cr2O3:Mg
(2015)Epitaxial p -type transparent conducting oxide (TCO) Cr 2 O 3 :Mg was grown by electron-beam evaporation in a molecular beam epitaxy system on c -plane sapphire. The influence of Mg dopants and the oxygen partial ... -
Connections between Internal and Surface properties of Massive Stars
(Trinity College Dublin. School of Physics. Discipline of Physics, 2022)Massive stars have an important impact on the universe. They are responsible for the generation of many of the chemical elements such as oxygen and silicon. They can produce core collapse supernovae which impact the chemical ... -
Data-driven magnetic materials inverse design
(Trinity College Dublin. School of Physics. Discipline of Physics, 2024)Magnetic materials have diverse applications across multiple sectors, ranging from magnetic resonance imaging machines, used to detect diseases, to electric motors, sensors, and wind turbines just to name a few. The demand ... -
Development and Characterisation of a Zero-Moment Half-Metal
(Trinity College Dublin. School of Physics. Discipline of Physics, 2021)A dream material for spintronics would have low/zero net moment, no stray fields, high resonance frequency, low damping and be 100 % spin polarised. Such materials combine the best features of a ferromagnet and an ... -
Dielectric focusing elements for integrated optics
(Trinity College Dublin. School of Physics. Discipline of Physics, 2018)The ability to propagate light around a `circuit' on a single chip has an abundance of applications. Connecting different elements can bring huge functionality to a minuscule device---as evidenced by integrated electronic ... -
Disorder and synchronization in nonequilibrium Bose-Einstein condensates
(Trinity College Dublin. School of Physics. Discipline of Physics, 2022)In this thesis, we investigate the impact of spatial disorder on driven-dissipative Bose-Einstein condensates (BECs). Bose-Einstein condensation is a collective phenomenon where many particles spontaneously occupy a single ... -
Dynamic structural colur in thin film stacks and patterned nanoparticle arrays
(Trinity College Dublin. School of Physics. Discipline of Physics, 2018)In this thesis a number of metal nanostructures have been investigated for structural colour at sub-micron scales. These structures have utilised localised surface plasmon resonance (LSPR) to produce near-field interactions ... -
The Effects of Rotation on the Evolution of the First Stars in the Universe
(Trinity College Dublin. School of Physics. Discipline of Physics, 2022)Understanding the nature of the first stars is key to understanding the early Universe. With new facilities such as the James Webb Space Telescope we may soon have the first observations of the earliest stellar populations, ... -
Electronic and structural characterisation of polycrystalline platinum disulfide thin films
(2020)We employ a combination of scanning tunnelling microscopy (STM) and scanning tunnelling spectroscopy (STS) to investigate the properties of layered PtS2, synthesised via thermally assisted conversion (TAC) of a metallic ... -
The Growth and Characterisation of Mn2Au Thin Films and Heterostructures
(Trinity College Dublin. School of Physics. Discipline of Physics, 2023)In this thesis, Mn2Au thin films and heterostructures are grown via molecular beam epitaxy. Mn2Au thin films are investigated on MgO (001) and Al2O3 (1102) substrates, and on Pt (111) seed layer grown on an Al2O3 (0001) ... -
Imaging and identification of point defects in PtTe2
(2021)The properties and performance of two-dimensional (2D) materials can be greatly affected by point defects. PtTe2, a 2D material that belongs to the group 10 transition metal dichalcogenides, is a type-II Dirac semimetal, ... -
Imaging domains in a zero-moment half-metal
(2019)We have a choice of methods for examining domains at the surface of a ferromagnet that depend on probing the stray field distribution, but these methods do not work in antiferromagnets or compensated ferrimagnets, which ...