Theses - Materials Science and Metallurgy
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Atomic structures and properties of oxide interfaces
This thesis uses computational approaches, mainly first-principles methods, to study interfaces in oxide thin films. One of the difficulties in interface studies is the lack of definitive atomistic models, yet they are ... -
Josephson coupling and proximity effects through helimagnetic rare earth interfaces
This thesis presents research on the effect of superconducting-helimagnetic heterostructures. First, the electric and magnetic properties of epitaxial Nb(20 nm)/HoDy(40 nm) bilayers are studied. The saturation magnetisation ... -
Characterisation of ScN and ScGaN alloys grown by Molecular Beam Epitaxy
(Department of Materials Science and Metallurgy, 2014-07)The wurtzite III-nitrides AlN, GaN and InN are currently widely used in optoelectronic applications such as light-emitting diodes and this success is owed in large part to the possibility of band gap engineering by ... -
On the plastic deformation behaviour of nickel-based superalloys: low cycle fatigue and stress orientation effects
This dissertation expands upon the current knowledge of plastic deformation in nickel-based superalloys, with a focus on dislocation mechanisms and the effect of microstructure. The two main topics treated are the evolution ...
