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Structures of columnar packings with soft and hard spheres
(Trinity College Dublin. School of Physics. Discipline of Physics, 2020)
Columnar structures refer to dense cylindrical packings of spheres. They are ubiquitous throughout botany, foams, and have recently also become popular in nanoscience. We investigate such structures by carrying out computer ...
Toroid formation in polystyrene-block-poly(4-vinyl pyridine) diblock copolymers: Combined substrate and solvent control
(Elsevier, 2010)
A polystyrene-block-poly(4-vinyl pyridine) diblock copolymer (PS-b-P4VP) has been used to create nanosized toroid-like structures on nitrided silicon oxide and gold substrates via simple solvent annealing of spun cast ...
Temporal water mobility and sodium intensity measurements in penumbra and core tissue during acute stroke
(2011)
The perfusion-diffusion mismatch is a commonly used approach to distinguish between still-viable penumbra and irreversibly damaged core tissue in human stroke patients. However, in recent years it has become clear that the ...
Electronic transport calculations for the conductance of Pt-1,4-phenylene diisocyanide-Pt molecular junctions.
(2010)
The low-bias transport properties of a single 1,4-phenylene diisocyanide (PDI) molecule
connected to two platinum (Pt) electrodes are investigated using a self-consistent ab initio
approach that combines the non-equilibrium ...
Influence of intra-ensemble energy transfer on the properties of nanocrystal quantum dot structures and devices
(2010)
The impact of intra-ensemble Forster resonant energy transfer (FRET) on the optical properties of monodispersed quantum dot (QD) monolayers and a donor/acceptor FRET bilayer structure are presented. The QD structures are ...
Strain effects in spinel ferrite thin films from first principles calculations
(2011)
The inverse spinel ferrimagnets CoFe2O4 (CFO) and NiFe2O4 (NFO) are of interest for applications in spin-filter devices or as building blocks of artificial multiferroic heterostructures. Here we present density functional ...
Magnetic and transport properties of magnetite based nanostructures
(Trinity College (Dublin, Ireland). School of Physics, 2009)
In this thesis, we investigate the magnetic and transport properties of
magnetite based nanostructures. We in particular investigate the magnetization
and surface Verwey transition of magnetite thin film, interlayer ...
Sudden decay of indirect exchange coupling between magnetic atoms on carbon nanotubes
(2008)
Indirect exchange coupling plays a central role in determining the magnetic order in systems composed of adsorbed magnetic moments on a metallic host. For low-dimensional metallic structures, such as nanotubes, this ...