Browsing School of Physics by Title
Now showing items 914-933 of 2105
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Interactions of Plasmonic and Dielectric Structures with 2D Materials
(Trinity College Dublin. School of Physics. Discipline of Physics, 2023)Three separate systems of nanoparticles coupled to two-dimensional materials are studied. Each system is investigated both experimentally and numerically with FDTD simulations. The first system involves a nanoparticle-on-mirror ... -
Interface and transport properties of Fe/V/MgO/Fe and Fe/V/Fe/MgO/Fe magnetic tunneling junctions
(2009)The interface and transport properties of Fe/V/MgO/Fe and Fe/V/Fe/MgO/Fe magnetic tunneling junctions are investigated by using density-functional theory and nonequilibrium Green?s-function methods. Bader analysis reveals ... -
Interface engineering of graphene nanosheet reinforced ZrB2 composites by tuning surface contacts
(American Physical Society (APS), 2019)The mechanical properties of heterophase interfaces are critically important for the behavior of graphenereinforced composites. In this work, the structure, adhesion, cleavage, and sliding of heterophase interfaces formed ... -
Interface properties of Fe3O4/MgO and surface studies of Fe3O4(110)
(Trinity College (Dublin, Ireland). School of Physics, 2006)The research project described in this Ph.D. thesis can be divided into two parts. The first, consisting in the description of a new instrument, the low temperature tunneling device (LTTD), designed and built in order to ... -
Interfacial transport properties between a strongly correlated transition metal oxide and a metal: Contact resistance in Fe3O4/M (M=Cu, Au, Pt) nanostructures
(2010)Multiterminal measurements have typically been employed to examine electronic properties of strongly correlated electronic materials such as transition metal oxides without the influence of contact effects. In contrast, ... -
Interfacing 2D VS2 with Janus MoSSe: Antiferromagnetic electric polarization and charge transfer driven Half-metallicity
(2021)Half metallic 2D materials with 100% spin polarization at the fermi level can be applied to spintronics to enhance the device efficiency. We identified that the Janus MoSSe monolayer can induce halfmetallicity in the VS2 ... -
Interferometer based in-band OSNR monitoring of single and dual polarisation QPSK signals
(IEEE Computer Society, 2010)The in-band OSNR of SP and DP QPSK signals were measured over a range of 10 to 21dB ?1dB using a pair of polarisation independent Michelson fibre interferometers without the requirement for prior knowledge of the signal's ... -
Interlayer dielectric function of a type-II van der Waals semiconductor: The HfS2/PtS2 heterobilayer
(American Physical Society (APS), 2019)Heterogeneous stacks of two-dimensional transition-metal dichalcogenides can be arranged so as to have a type-II band alignment, where the valence band maximum and the conduction band minimum are located on different layers. ... -
Internalization of ferromagnetic nanowires by different living cells
(2006)The ability of living cells, either adherent or suspended, to internalize nickel nanowires is demonstrated for MC3T3-E1, UMR106-tumour and Marrow-Stromal cells. Nanowires were produced by electrodeposition, 20 mum long and ... -
Interplay of bulk and interface effects in the electric-field-driven transition in magnetite
(2010)Contact effects in devices incorporating strongly correlated electronic materials are comparatively unexplored. We have investigated the electrically driven phase transition in magnetite 100 thin films by fourterminal methods. ... -
Intrinsic decoherence mechanisms in the microcavity polariton condensate
(American Physical Society, 2008)The fundamental mechanisms which control the phase coherence of the polariton Bose-Einstein condensate (BEC) are determined. It is shown that the combination of number fluctuations and interactions leads to decoherence ... -
Inverse Problems in Disordered Systems
(Trinity College Dublin. School of Physics. Discipline of Physics, 2023)It is a simple Quantum Mechanics problem to find the electronic conductance of a device by directly solving the Schrodinger Equation. Obviously, this is the case if and only if the underlying Hamiltonian is known, i.e., ... -
Inverted magnetoresistance in dual spin valve structures with a synthetic antiferromagnetic free layer
(2009)We report an oscillation of the giant magnetoresistance GMR ratio as a function of Ru layer thickness in the CoFe/Cu/ CoFe/Ru/CoFe SAF/Cu/CoFe/IrMn dual spin valve SV structure. A normal GMR with a positive sign is ... -
Investigating of gas sensing and diode laser frequency stabilisation using novel photonic microstructures
(Trinity College (Dublin, Ireland). School of Physics, 2010)Laser spectroscopy is nowadays a widespread research field with countless applications across multiple disciplines. In particular, the application to gas sensing in the near-infrared region significantly benefits from the ... -
Investigating the driving mechanisms of coronal mass ejections
(ESO, 2010)Aims. The objective of this study was to examine the kinematics of coronal mass ejections (CMEs) using EUV and coronagraph images, and to make a quantitative comparison with a number of theoretical models. One particular ... -
Investigating the Feasibility of Photostimulation for the Development of a Low Energy-Spread Electron Microscope Source.
(Trinity College Dublin. School of Physics. Discipline of Physics, 2024)Electron microscopes use fast-moving electrons as illumination to generate high resolution images down to the atomic scale. They are a valuable tool in various research fields, from palaeontology to material science. Low ... -
Investigation into semiconductor microcavity light emitting strucutres, and the assessment of InAs/GaAs quantum dots as sources for etched microstructures
(Trinity College (Dublin, Ireland). School of Physics, 2002)The spectral, spatial, and temporal characteristics of the spontaneous light emission process are dependent on the optical environment with which the emitter interacts. Cavity structures with dimensions of the order of the ... -
An Investigation into the Accretion Processes of Young Stellar Objects
(Trinity College Dublin. School of Physics. Discipline of Physics, 2023)The way in which young stars form is complex and fascinating, and is anything but a smooth, continuous process. Studying their dramatic, and sometimes violent, early years of accreting and ejecting material is vital in ...