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Now showing items 1161-1170 of 2111
Magnetic noise in MgO-based magnetic tunnel junction rings
(2010)
Magnetization switching is investigated in ring-shaped MgO-based magnetic tunnel junctions with
168% tunneling magnetoresistance. Besides the forward and reverse onion states, two vortex
states and several metastable ...
Charge-Transfer and Non-Rigid-Band Effects in the Graphite Compound LiC6
(1981)
A comparison of angle-resolved photoemission energy distributions for pure graphite and the intercalation compound LiC6 show that considerable charge is transferred from Li to C, as expected; but the valence bands do not ...
Post-fabrication tuning of Hybrid Plasmonic Nanostructures with VO2
(Trinity College Dublin. School of Physics. Discipline of Physics, 2023)
The development of hybrid plasmonic nanostructures and metamaterials to control electromagnetic radiation on the nanoscale has been at the centre of scientific research for the past few decades. Utilising the surface plasmon ...
Contact interface studies of metal and carbon electrodes to germanium nanowires, carbon nanotubes and thin carbon films in associated devices
(Trinity College (Dublin, Ireland). School of Physics, 2013)
In current state-of-the art electronic devices the electrical contact between source- and drain-electrode plays a crucial role in the performance of the nano size devices. Especially for carbon based materials such as ...
Forbidden emission lines of NE IV in the optical and ultraviolet spectra of gaseous nebulae
(Blackwell, 1998)
Recent R-matrix calculations of electron impact excitation rates in Ne IV are used to calculate emission line ratio-ratio diagrams involving both the UV (1602, 2422 and 2424 A) and optical (4714, 4716, 4724 and 4726 A) ...
Prediction of the two-dimensional Janus ferrovalley material LaBrI
(2021)
Two-dimensional (2D) ferrovalley materials, displaying coexistence of spontaneous spin and valley polarizations, have recently attracted significant attention due to their potential for applications in the fields of ...
Possible doping strategies for MoS2 monolayers: An ab initio study
(2013)
Density functional theory is used to systematically study the electronic properties of doped MoS2 monolayers, where the dopants are incorporated both via S/Mo substitution or as adsorbates. Among the possible substitutional ...
Modelling of Extraction Efficiency of GaN-Based Resonant Cavity Light Emitting Diodes Emitting at 510 nm
(2002)
The design of GaN resonant cavity light emitting diodes (RCLEDs) emitting at 510 nm is optimised for maximum extraction efficiency into numerical apertures (NAs) of 1.0 and 0.5. The optimisation is performed as a function ...
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., ...
Giant magnetic moment in epitaxial Fe3O4 thin films on MgO (100)
(2008)
Magnetization studies on well characterized epitaxial magnetite (Fe3O4) thin films grown on MgO(100) show that the ultrathin films (<5?nm thickness) are ferromagnetic and their magnetic moments are much greater than those ...