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Magnetization, Anomalous Hall Effect and Single Pulse Partial All-optical Switching in Amorphous Rare-earth Transition-metal Thin Films
(Trinity College Dublin. School of Physics. Discipline of Physics, 2023)
Research on rare-earth (R) transition-metal (T) thin films has a long history. A revival of interest in this field was sparked by the discovery of single pulse all-optical switching (SP-AOS) in a-GdFeCo1 alloy thin films ...
Size Selection And Monolayer Enrichement In Liquid Exfoliated Tungsten Disulphide Dispersions.
(Trinity College Dublin. School of Physics. Discipline of Physics, 2018)
Since the the discovery of graphene in 2004, the scientific environment turned its great interest towards new type of nanomaterials, commonly called two dimensional (2D) layered nanomaterials. Over last 15 years, they ...
Transition levels of defects in ZnO: Total energy and Janak's theorem methods
(2012)
Transition levels of defects are commonly calculated using either methods based on total energies of defects in relevant charge states or energy band single particle eigenvalues. The former method requires calculation of ...
Photonic molecules modes in resonantly coupled spherical microcavities with semiconductor nanocrystals
(SPIE, 2007)
We present a detailed study of the localized coupled-cavity modes in a photonic molecule formed from two dielectric spherical microcavities with CdTe nanocrystals, which show a multi-peak narrowband modal structure resulting ...
High-sensitivity two-photon absorption microcavity autocorrelator
(2004)
A GaAs-AlAs microcavity device has been used as a photodetector in an autocorrelator for measuring the temporal pulsewidth of 1.5-/spl mu/m optical pulses. Enhancement of the two-photon absorption photocurrent due to the ...
Influence of Gold Nano-Bipyramid Dimensions on Strong Coupling with Excitons of Monolayer MoS2
(2020)
Rabi splitting between the longitudinal plasmon of a gold nano-bipyramid and the A exciton of monolayer MoS2 is observed at room temperature. The dependence of the Rabi splitting on the physical dimensions of the nano-bipyramid ...
Paramagnetic defects in thin carbon films
(Trinity College (Dublin, Ireland). School of Physics, 2003)
This thesis is an investigation into paramagnetic defects in thin carbon films, their nature and the effects of deposition parameters and post deposition treatments. Electron paramagnetic resonance (EPR) is used to examine ...
Development of MoS2-CNT composite thin film from layered MoS2 for lithium batteries
(2013)
Organic thin film nanocomposites, prepared by liquid-
phase exfoliation, were investigated for their superior
electrical properties and thermoelectric behavior. Singlewalled
carbon nanotubes (SWNT) were stabilized by ...
Evidence for spin glass state of NdCo1-xNixO 3 (x = 0.3- 0.5)
(2014)
Low-temperature magnetic properties of single phase NdCo1−x Ni xO3(x = 0.3−0.5) have been studied using ac and dc magnetic susceptibility measurements. Nickel substituted samples have been found to exhibit a different ...
Structure and Electronic Properties of Point Defects at Semiconductor Oxide Interfaces
(Trinity College (Dublin, Ireland). School of Physics, 2015)
Semiconductor-oxide interfaces, particularly Si/SiO2 and Si/HfO2, are the centrepieces of transistor technology. Defects at such interfaces can massively affect device performance. Experimental studies on Si/SiO2 and Si/HfO2 ...