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Now showing items 501-510 of 2111
Anomalous strain relaxation behaviour of Fe3O4/MgO (100) heteroepitaxial system grown using molecular beam epitaxy
(2006)
Strain relaxation studies in epitaxial magnetite (Fe3O4) thin films grown on MgO (100) substrates using high-resolution x-ray diffraction and cross-sectional transmission electron microscopy reveal that the films remain ...
Tunneling processes in asymmetric double barrier magnetic tunnel junctions with a thin top MgO layer
(2013)
Dynamic conductance dI/dV and inelastic electron tunneling spectroscopy (IETS) d 2I/dV 2 have been measured at different temperatures for double barrier magnetic tunnel junctions with a thin top MgO layer. The resistance ...
Single-pulse all-optical switching in amorphous DyxCo1-x and TbxCo1-x
(2022)
Repeated uniform switching of the magnetization of thin films of ferrimagnetic amorphous Gdx(FeCo)1−x in response to single fast laser pulses is well established. Here, we report unusual toggle switching in thin films of ...
EUV and X-ray spectroscopy of the active sun
(Trinity College (Dublin, Ireland). School of Physics, 2010)
This thesis strives to improve our understanding of solar activity, specifically the behaviour of solar flares and coronal mass ejections. An investigation into the hydrodynamic evolution of a confined solar are was carried ...
Polarised photoluminescence from oriented polymer liquid crystal films
(1997)
Optical anisotropy in a new form of crosslinked liquid crystal network incorporating a fluorescent chromophore has been demonstrated. Linearly polarised absorption and fluorescence is observed in oriented thin films. From ...
IrMn as exchange-biasing material in systems with perpendicular magnetic anisotropy
(American Institute of Physics, 2005)
Contact between a Co/Pt multilayer and an IrMn film leads to perpendicular exchange bias. The exchange bias field does not depend on the degree of (111) film texture and for Co/Pt multilayers with IrMn at the bottom it can ...
High temperature ferromagnetism in dilute ferromagnetic oxides
(2005)
High temperature ferromagnetism in thin films of dilute magnetic oxides is a widespread phenomenon, of which there appear to be two sources. One is the contribution of the 3d dopant ions themselves, the other is related ...
Evaluation of the chemical, electronic and optoelectronic properties of γ-CuCl thin films and their fabrication on Si substrates
(2007)
CuCl is a I–VII semiconductor material with a direct band gap of ~3.4 eV. It exhibits a zincblende structure (γ-phase) at low temperatures, up to ~680 K. Unlike GaN, ZnO and related materials, CuCl has a relatively low ...
Magnetic and electronic properties of D022-Mn3Ge (001) films
(2012)
Oriented thin films of Mn3Ge with the tetragonal D022structure,grown on strontium titanate substrates, exhibit a low magnetization M s?=?73?kA m?1 combined with high uniaxial anisotropyK u?=?0.91?MJ m?3 at 300?K, making ...