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The effect of magnetic annealing on barrier asymmetry in Co40Fe40B20/MgO magnetic tunnel junctions
(2010)
We demonstrate that high-quality magnetic tunnel junctions with Co40Fe40B20 electrodes and crystalline MgO barriers, which show a 230% tunneling magnetoresistance ratio at room temperature, can be successfully fabricated ...
Percolation Effects in Electrolytically Gated WS <inf>2</inf> /Graphene Nano:Nano Composites
(2019)
Mixed networks of conducting and non-conducting nanoparticles show promise in a range of applications where fast charge transport is important. While the dependence of network conductivity on the conductive mass fraction ...
Helium ion microscope generated nitrogen-vacancy centres in type Ib diamond
(2014)
We report on position and density control of nitrogen-vacancy (NV) centres created in type Ib diamond using localised exposure from a helium ion microscope and subsequent annealing. Spatial control to <380 nm has been ...
RealTime Mass Sensing by Nanomechanical Resonatorsin Fluid
(2004)
We have developed a sensitive method for real-time mass sensing in a fluid using a microfabricated array of nanomechanical cantilevers actuated at their resonance frequencies. The sensor platform consists of a streptavidin ...
New conjugated polymers : Synthesis, characterisation and applications
(Trinity College (Dublin, Ireland). School of Physics, 2000)
A series of conjugated polymers related to poly (phenylenevinylene) have been synthesised and characterised. These polymers contain various substitution patterns. Octyloxy side-chains were attached to the arylene units of ...
Machine Learning for Condensed Matter Physics
(Trinity College Dublin. School of Physics. Discipline of Physics, 2021)
This thesis is about the application of machine learning (ML) methods to a variety of problems in condensed matter physics. As condensed matter physics has large computational and experimental datasets readily available - ...
Inadequacy of the asymptotic approximation for the interlayer coupling in Fe/Ag/Fe and Fe/Au/Fe (001) trilayers
(American Physical Society, 1999)
We discuss the basic assumptions underlying the stationary phase approximation to the interlayer exchange coupling between magnetic materials across nonmagnetic spacers. We show that, for temperatures and spacer thicknesses ...
Initial nucleation of Au on the (root2 x root2) R45 circle reconstructed Fe3O4 (001) surface
(2006)
The initial nucleation of Au onto the (root 2 x root 2-)R45 degrees reconstructed Fe3O4(001) surface has been studied using scanning tunnelling microscopy. Au clusters are formed, with a typical lateral dimension of similar ...