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Now showing items 248-267 of 283

  • The complex dynamics of flowing foam 

    Sexton, Michael B. (Trinity College (Dublin, Ireland). School of Physics, 2014)
    We investigate the link between the non-linear macroscopic rheology of wet foams and the microscopic interactions at the bubble-scale, within the general framework of foams as a complex system. This rheology has been found ...
  • The evolution and space weather effects of solar coronal holes 

    Krista, Larisza D. (Trinity College (Dublin, Ireland). School of Physics, 2011)
    In recent years the role of space weather forecasting has grown tremendously as our society increasingly relies on satellite dependent technologies. As solar activity is the foremost important aspect of space weather, the ...
  • The growth, formation and magnetic behaviour of noble metal capped atomic wires 

    Duignan, Martin James (Trinity College (Dublin, Ireland). School of Physics, 2016)
    Transition metal nanostructures have been observed to have several interesting magnetic properties. Nanowire of atomic widths on a vicinal surfaces show these interesting properties clearly, which also vary with the width ...
  • The impact of protostellar jets on their environment 

    O'Connell, Barry F. (Trinity College (Dublin, Ireland). School of Physics, 2005)
    The nature of the accelerated and heated gas along collimated outflows emanating from deeply embedded protostars is investigated. By analysing the shock structures and excitation conditions it is possible to deduce information ...
  • The influence of the laser induced plasma in the pulsed laser depositon of ZnO 

    de Posada, Eduardo (Trinity College (Dublin, Ireland). School of Physics, 2005)
    The thesis is divided in three main sections, two of them Chapter 2 and 3 are devoted to the study and analysis of the laser produced plasma. Finally in the third section (Chapter 4) the conclusions obtained in the first ...
  • The kinematics and morphology of solar coronal mass ejections 

    Byrne, Jason P. (Trinity College (Dublin, Ireland). School of Physics, 2010)
    Solar coronal mass ejections (CMEs) are large-scale eruptions of plasma and magnetic field from the Sun into the corona and interplanetary space. They are the most significant drivers of adverse space weather at Earth and ...
  • The physical properties of agent-based systems 

    Sabatelli, Lorenzo (Trinity College (Dublin, Ireland). School of Physics, 2004)
    This thesis deals with the physical properties of agent-based systems. Agent models are powerful tools for understanding 'social' self¬organized systems and may provide an explanation of features typically found in many ...
  • The physico-chemical properties of fullerenes and porphyrin derivatives deposited on conducting surfaces 

    Murphy, Barry E. (Trinity College (Dublin, Ireland). School of Physics, 2014)
    In this thesis, three organic molecules are examined on three distinct surfaces by a variety of surface science techniques, foremost among them being scanning tunneling microscopy (STM). When deposited on the W02/W(110) ...
  • The structure and flow of disordered wet foams 

    O'Donovan, Cathal B. (Trinity College (Dublin, Ireland). School of Physics, 2014)
    This thesis concerns the structure and flow properties of wet foams. We primarily use computer simulations of soft particles to model the behaviour of disordered wet foams. We investigate the properties of 2D and 3D polydis- ...
  • The structures and extents of the chromospheres of late-type stars 

    Ó Riain, Neal (Trinity College (Dublin, Ireland). School of Physics, 2015)
    The chromosphere is the region of a star, above what is traditionally defined as the stellar surface, from which photons freely escape. As the definition implies, this region is characterised by complexity, non-equilibrium, ...
  • The surface energetics of low dimensional nanomaterials 

    Ferguson, Auren (Trinity College (Dublin, Ireland). School of Physics, 2017)
    Over the past two decades, there has been great interest in the discovery and research of low dimensional nanomaterials. These materials, such as carbon nanotubes and graphene, are amongst the strongest and most conductive ...
  • The weakly coupled chiral Schwinger model on a finite lattice 

    Pinto, Carlos (Trinity College (Dublin, Ireland). School of Physics, 2000)
    The primary aim of this work is the development of a perturbative analysis of the phase structure of the lattice Schwinger model. A novel method for implementing this analysis is presented. It is shown analytically that ...
  • Theoretical and computational aspects of electronic transport at the nanoscale 

    Rocha, Alexandre Reily (Trinity College (Dublin, Ireland). School of Physics, 2007)
    The problem of electronic transport in systems comprising only a handful of atoms is one of the most exciting branches of nanoscience. The aim of this work is to address the issue of non-equilibrium transport at the ...
  • Theoretical and experimental study on electron transport in oxygen-plasma-treated monolayer MoS2 

    LI, GEN (Trinity College Dublin. School of Physics. Discipline of Physics, 2019)
    In recent years, two dimensional (2D) molybdenum disulfide (MoS2) has attracted a wide range of interest due to its interesting physics properties, such as valley electronics and quantum spin Hall effect, and its potential ...
  • Theoretical studies of carbon nanotubes interacting with magnetic atoms 

    Kirwan, David (Trinity College (Dublin, Ireland). School of Physics, 2009)
    The past twenty years have seen an enormous increase in interest in the properties of low dimensional systems. Carbon nanotubes are an example of one such system. They possess remarkable physical properties which it is ...
  • Theoretical studies of doped carbon nanotube-based materials 

    Wall, Andrew (Trinity College (Dublin, Ireland). School of Physics, 2008)
    For the last fifteen years, carbon nanotubes have piqued the interest of many in the materials research community, due to their superlative individual characteristics. One possible route to their technological exploitation ...
  • Theoretical study of topological insulators : models and materials 

    Awadhesh, Narayan (Trinity College (Dublin, Ireland). School of Physics, 2014)
    Topological insulators are a fascinating new class of materials, which have signalled a revival in exploration of topological aspects of condensecl matter physics. Like usual insulators they have an energy gap separating ...
  • Thermo and electro-optical analysis of polymer dispersed liquid crystal systems 

    Petti, Lucia (Trinity College (Dublin, Ireland). School of Physics, 2002)
    The objective of the work performed in this thesis is to prepare Polymer Dispersed Liquid Crystal (PDLC) systems under optimised preparation conditions and with improved liquid crystal/polymer composition for thermo-and ...
  • Third-order Nonlinear Optical Response and Ultrafast Carrier Dynanics of 2D Materials 

    WANG, GAOZHONG (Trinity College Dublin. School of Physics. Discipline of Physics, 2018)
    Two dimensional (2D) materials have been in the spotlight of scientific researchers in the last decade due to their outstanding chemical, physical, electronic, mechanical and optical properties in comparison to their bulk. ...
  • Three-dimensional models of astrophysical magnetohydrodynamical jets 

    Murphy, Gareth Charles (Trinity College (Dublin, Ireland). School of Physics, 2007)
    In the previous fifty years it has become clear that jets and outflows play a vital role in the formation of stars and com pact objects. Jets from young stellar objects typically show Herbig-Haro knots and bow shocks. ...