Browsing School of Physics by Sponsor "Trinity College Dublin (TCD)"
Now showing items 1-13 of 13
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ALMA Observations of Non-uniform Dust Mass-loss in the Inner Circumstellar Environment of the Red Supergiant VY CMa
(2015)The processes leading to dust formation and the subsequent role it plays in driving mass loss in cool evolved stars is an area of intense study. Here we present high resolution ALMA Science Verification data of the continuum ... -
Connecting evolved massive stars to interacting supernovae
(Trinity College Dublin. School of Physics. Discipline of Physics, 2021)Massive stars and supernovae are not only remarkable objects on their own but they are closely related to many other topics in Astrophysics, such as nucleosynthesis, star formation, and gravitational waves. ... -
Corrective First-Principles Approaches for the Theoretical Spectroscopy of Transition-Metal Systems
(Trinity College Dublin. School of Physics. Discipline of Physics, 2018)Density-functional theory within its practical, widespread Kohn-Sham formalism (KS-DFT), is an effective approach for providing the starting point for advanced first-principles spectroscopy simulations of molecules and ... -
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 ... -
Evaluation of STEM@University Experiences for Transition Year Students
(Trinity College Dublin. School of Physics. Discipline of Physics, 2022)This master's monograph and research present a study on the influence of STEM@University (a non-formal, university-school intervention) on a Transition Year student's STEM identity, through the measurement of STEM capital, ... -
Graphene Based Membranes for Osmosis Applications
(Trinity College Dublin. School of Physics. Discipline of Physics, 2020)With the discovery of two-dimensional hexagonal graphene (single layer of graphite), a tremendous interest has grown due its remarkable properties. Apart from all other properties, its superior thickness (one-atom thick) ... -
Magnetic investigations of Mn-based and Mn-free potential half metals
(Trinity College Dublin. School of Physics. Discipline of Physics, 2022)This thesis is concerned with an unusual category of magnetically ordered material, the zero moments ferrimagnetic half metal, which has potential for applications in thin film memory and logic devices. The materials are ... -
Mortality: a physics perspective
(2021)One of the many interests of the late Dietrich Stauffer was the modelling of mortality. Here we review the features of mortality data for various biological species. Age specific mortality (death rate) leads to a discussion ... -
Optimisation of Electrolytically-gated Thin Film Transistors made from Printed Nanosheet Networks
(Trinity College Dublin. School of Physics. Discipline of Physics, 2022)Networks of two-dimensional nanosheets show great potential in a wide variety of different applications, with particular focus on the area of printed electronics. One of the main issues facing such nanosheet network ... -
Physical models of infant mortality: implications for defects in biological systems
(2020)Reliability engineering concerned with failure of technical inanimate systems usually uses the vocabulary and notions of human mortality, e.g., infant mortality vs. senescence mortality. Yet, few data are available to ... -
Properties of massive stars before death
(Trinity College Dublin. School of Physics. Discipline of Physics, 2021)Despite their importance, there is a lot yet to be learned regarding massive stars, particularly those at late evolutionary stages. In the first of two studies presented here, we investigate a suspected very massive star ... -
Quantum transport in 2D materials: Theoretical and computational optimisation of large heterostructures with spintronics properties
(Trinity College Dublin. School of Physics. Discipline of Physics, 2023)Graphene is a monolayer of carbon atoms arranged in a hexagonal lattice, making it the thinnest and strongest material known to man. Its exceptional electronic and thermal properties have generated great interest for its ... -
Surface Studies of Oxidised Metals: Mo, Nb and Cu
(Trinity College Dublin. School of Physics. Discipline of Physics, 2021)The atomic structure and evolution of ultra-thin film oxides is investigated for Mo, Nb and Cu using surface sensitive techniques such as scanning tunneling microscopy (STM), scanning tunneling spectroscopy (STS), low ...
