Browsing Physics by Title
Now showing items 2089-2105 of 2105
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X-ray and radio diagnostics of accelerated electrons in solar active regions
(Trinity College (Dublin, Ireland). School of Physics, 2015) -
X-ray Photoelectron Spectroscopy of Novel Ternary Materials
(Trinity College Dublin. School of Physics. Discipline of Physics, 2021)In this thesis the best synthesis conditions and compositional dependency of optoelectronic properties for novel ternary n-type amorphous Zinc Tin oxide (a-ZTO) and p-type nanocrystalline CuxCrO2 Transparent Conducting ... -
The X-ray spectroscopic diagnosis of laser-produced plasmas, with emphasis on line broadening
(American Physical Society, 1980)A detailed account is given of the x-ray spectroscopic diagnosis of plasmas formed by exploding pusher microballoons. The measurements of the electron temperature from the shell and from the core is described. A method for ... -
X-ray spectroscopic studies of the electronic structure of chromium based p-type transparent conducting oxides
(Trinity College Dublin. School of Physics. Discipline of Physics, 2018)In this thesis the electronic, optical, electrical, and mechanical properties of two p-type transparent conducting oxides will be explored, primarily by spectroscopic techniques. The initial chapters outline how the ... -
X-ray spectroscopic studies of the electronic structure of chromium-based p-type transparent conducting oxides
(2016)The valence band structure of p-type transparent oxides—crystalline MgxCr2−xO3 and nanocrystalline CuxCrOy—is analyzed as a function of incoming photon energy. The valence band of both p-type transparent conducting oxides ... -
X-ray spectroscopic study of the electronic structure of the high-dielectric-constant material CaCu3Ti4O12
(2005)The element-specific valence- and conduction-band densities of states for the high-dielectric-material CaCu 3 Ti 4 O 12 have been measured using soft x-ray emission and absorption spectroscopies. Ti L a , b , ... -
An XPS Study of the Oxidation of Reduced Ceria-Lanthana Nanocrystals
(Elsevier, 2011)Detailed x-ray photoelectron spectroscopy (XPS) studies on the oxidation of an extensivley cleaned, reduced ceria-lanthana solid solution (12.5 mol% La to Ce) was performed. Uptake of oxygen during oxidation followed a ... -
Yielding and flow of highly concentrated, few-layer graphene suspensions
(2015)For a wide range of applications of graphene suspensions, a thorough understanding of their rheological properties is crucial. We probe the microstructure of dense suspensions of micron-sized, few-layer, defect-free graphene ... -
Yoke-shaped MgO-barrier magnetic tunnel junction sensors
(2012)Yoke-shaped sensors based on MgO-barrier magnetic tunnel junctions have been designed, fabricated, and studied; they show a good linear tunneling magnetoresistance (TMR) response. A nearly-perpendicular configuration of ... -
Young brown dwarfs and their environments : testing star and planet formation
(Trinity College (Dublin, Ireland). School of Physics, 2014)This thesis presents a new contribution to our understanding of the formation of brown dwarfs. From a description of their discovery, to an analysis of their disks and photospheres, it sheds new light on the conditions ... -
Z-Cone model for the energy of an ordered foam
(2014)We develop the Z-Cone Model, in terms of which the energy of a foam may be estimated. It is directly applicable to an ordered structure in which every bubble has Z identical neighbours. The energy (i.e. surface area) may ... -
Z-pinch Discharge in Laser Produced Plasma
(2010)Z-pinch effects in a laser produced aluminium plasma were investigated with a relatively low current fast coaxial electrical discharge. The ion flux in the laser produced plasma (LPP) was monitored with a Langmuir ion ... -
The zero-magnetization Heusler ferrimagnet
(2013)An unusual zero-moment half-metallic state has been predicted in stoichiometric Heusler compounds with 24 valence electrons, where, unlike an antiferromagnet, the two sublattices are chemically or crystallographically ... -
The zero-moment half metal: How could it change spin electronics?
(2016)The Heusler compound Mn2RuxGa (MRG) may well be the first compensated half metal. Here, the structural, magnetic and transport properties of thin films of MRG are discussed. There is evidence of half-metallicity up to x = ... -
Untitled
(2013)The spatial resolution of a scanning tunneling microscope (STM) can be enhanced using light element-terminated probes with spatially localized electron orbitals at the apex atom. Conductive diamond probes can provide carbon ...
