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  • Picosecond degenerate four-wave mixing in organic materials 

    Maloney, Colette (Trinity College (Dublin, Ireland). School of Physics, 1986)
  • CrO2 : a general study 

    Barry, Amanda (Trinity College (Dublin, Ireland). School of Physics, 2000)
    The aims of this work were (i) to prepare chromium dioxide, CrO2, in thin film and powder form (ii) to study its magnetic, electronic and thermal properties and (iii) to introduce thin films of CrO2 into a multilayer device ...
  • Surface studies of magnetite (100) 

    Seoighe, Ciaran (Trinity College (Dublin, Ireland). School of Physics, 2000)
    The (100) surface of magnetite (Fe3 O4 ) has been studied using scanning tunneling microscopy (STM) in ultra high vacuum (UHV) with a view to establishing a test surface for spin polarised STM experiments. Two structured surface ...
  • Supersymmetric noether currents and Seiberg-Witten theory 

    Iorio, Alfredo (Trinity College (Dublin, Ireland). School of Physics, 2000)
    This thesis has been devoted to the construction of the Noether supercharges for the Seiberg-Witten (SW) model. One of our most important results is the first complete and direct derivation of the SW version of the mass formula.
  • 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 ...
  • Preparation, characterisation and technological applications of half-metallic ferromagnetic oxides in ceramic and thin film form 

    Borges, Rui Pedro Nogueiro Gomes Morais (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 ...
  • Curing of complex monomer systems: a spectroscopic and thermal analysis 

    Martin, Seán J. (Trinity College (Dublin, Ireland). School of Physics, 2001)
    This thesis describcs the development of a novel methodology, which uses the high resolution liquid nuclear magnetic resonance (NMR) spectroscopic technique to continuously monitor in real time the thermal and UV-photoinitiated ...
  • Mechanically alloyed Sm-Co hard magnetic materials 

    Gallagher, Kathleen (Trinity College (Dublin, Ireland). School of Physics, 2002)
    In the recent search for new high-temperature permanent magnet materials, research has concentrated on bulk Sm2Co17-type magnets. The usual approach to development of coercivity in bulk Sm-Co based materials is to prepare ...
  • Numerical and experimental investigation of a novel waveguide design for use in high power laser diode devices 

    Patchell, John A. (Trinity College (Dublin, Ireland). School of Physics, 2002)
    Because of their efficiency, small size and reliability high power laser diodes are used for numerous tasks, such as the pumping of solid state lasers, second harmonic generation and the pumping of rare earth fibre amplifiers. ...
  • A search for X-ray flares in the nuclei of galaxies 

    Cunniffe, John (Trinity College (Dublin, Ireland). School of Physics, 2003)
    Observations of the giant elliptical galaxy NCG 4552 at ultraviolet wavelengths during the early 1990’s showed sharply peaked emission within ~2pc of its centre which initially brightened and then faded. The features of ...
  • Ultrafast non-linear optics for telecommunication applications 

    Communal, Jean-Edouard Paul Camille (Trinity College (Dublin, Ireland). School of Physics, 2003)
    The aim of the research done for this thesis was to characterise the properties of a fibre laser producing ultrashort pulses at the telecommunication wavelength of 1550nm. We also measured the nonlinear optical properties ...
  • Novel magnetic materials for spin electronic applications 

    Fitzgerald, Ciara Bridget (Trinity College (Dublin, Ireland). School of Physics, 2005)
    Among various types of semiconductors, oxide semiconductors are the most promising host compounds to realise high Curie temperatures with transition metal doping. Room temperature ferromagnetism in dilute oxide semiconductors ...
  • Synchrotron radiation studies of organic/inorganic semiconductor interfaces 

    Cabailh, Grégory (Trinity College (Dublin, Ireland). School of Physics, 2005)
    Organic semiconductor molecules are often employed as a thin film interlayer to improve electronic and optoelectronic devices. The characterisation of the interface is thus important to understand the physical properties ...
  • Red giant mass-loss : studying evolved stellar winds with FUSE and HST / STIS 

    Crowley, Cian (Trinity College (Dublin, Ireland). School of Physics, 2006)
    The changes that a star undergoes during the dying process are the most dramatic of its lifetime. These changes result in the most important interactions between a star and its environment, indeed it is in this area of ...
  • Metals, semimetals and semiconductors for spinelectronics 

    Stamenov, Plamen (Trinity College (Dublin, Ireland). School of Physics, 2008)
    The development of the new field of spin electronics depends upon the existence of materials and structures that may be used as effective spin-polarised current injectors, transmitters, manipulators and detectors. Potential ...
  • Numerical simulations concerning the propagation of protostellar jets 

    Moraghan, Anthony (Trinity College (Dublin, Ireland). School of Physics, 2008)
  • Linear and nonlinear optical properties of low-dimensional structures on vicinal silicon (111) surfaces 

    Jacob, Julie (Trinity College (Dublin, Ireland). School of Physics, 2008)
  • Manipulating atoms using scanning probe microscopy 

    Norris, Andrew Christopher (Trinity College (Dublin, Ireland). School of Physics, 2009)
    Manipulating species using Scanning Probe Microscopy (SPM) is an important discipline in the field of bottom-up fabrication, which facilitates nano-mechanics and electron dynamics investigations. Previous low temperature ...
  • Atomistic simulations of spin-dynamics 

    Stamenova, Maria (Trinity College (Dublin, Ireland). School of Physics, 2009)
    Current-induced spin-transfer torque effects form an exciting branch in the field of spintronics with a huge potential for applications. Magnetization dynamics phenomena like switching or GHz frequency precession in spin ...
  • Fields, fractals and flares: characterising magnetic complexity in solar active regions 

    Conlon, Paul A. (Trinity College (Dublin, Ireland). School of Physics, 2009)
    The main drivers of space weather, solar flares and coronal mass ejections, are thought to originate from active regions on the surface of the Sun. The mechanisms by which active regions produce these eruptive events remains ...