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Now showing items 511-520 of 2111
Models of coherent exciton condensation
(Institute of Physics, 2004)
That excitons in solids might condense into a phase-coherent ground
state was proposed about 40 years ago, and has been attracting experimental and
theoretical attention ever since. Although experimental confirmation has ...
Giant transverse hysteresis is an asperomagnet
(American Physical Society, 1990)
Comparison of the magnetoresistance of amorphous thin films of Tb80U20 and the nonmagnetic analog Y80U20 reveals hysteresis for the terbium alloy, which extends to fields in excess of 8 T at 4.2 K. Hysteresis is found in ...
Direct laser writing of submicron photonic arrays for vapor-responsive sensing
(2022)
A two photon polymerization technique was used to fabricate 2D photonic crystals based on a vapor-responsive hydrogel. By testing their vapor sensing performance, these photonic arrays were found to exhibit dynamic stimulus ...
Time-resolved Spectroscopy of Charge Transfer at the Interface of Nanomaterials and Porphyrins
(Trinity College Dublin. School of Physics. Discipline of Physics, 2018)
In order to optimize performance in many light-harvesting systems such as photovoltaics and photocatalysis, a fundamental comprehension of interfacial electron transfer at the interfaces of donor (D)-acceptor (A) systems ...
Variation of the electronic functionality of self-seeded germanium nanowires through synthesis determined core-shell interface states
(Trinity College (Dublin, Ireland). School of Physics, 2015)
Bottom up grown germanium nanowires may have an important role to play in future electronic devices. While the electrical properties of nanowires grown using a metallic seed as a catalyst have been extensively reported we ...
First-principles study of the influence of (110)-oriented strain on the ferroelectric properties of rutile TiO2
(American Physical Society, 2011)
We use first-principles density-functional theory to investigate the softening of polar phonon modes in rutile TiO(2) under tensile (110)-oriented strain. We show that the system becomes unstable against a ferroelectric ...
Near-field relaxation of a quantum emitter to 2D semiconductors: surface dissipation and exciton polaritons
(2016)
The total spontaneous emission rate of a quantum emitter in the presence of an infinite MoS2 monolayer is enhanced by several orders of magnitude, compared to its free-space value, due to the excitation of surface exciton ...
Synchrotron radiation studies of organic/inorganic semiconductor interfaces
(Trinity College (Dublin, Ireland). School of Physics, 2005)
Organic semiconductor molecules are often employed as a thin film interlayer to improve electronic and optoelectronic devices. The characterisation of the interface is thus important to understand the physical properties ...
Far-ultraviolet observations of NGC 3516 using the Hopkins ultraviolet telescope
(American Astronomical Society, 1996)
We observed the Seyfert 1 galaxy NGC 3516 twice during the flight of Astro-2 using the Hopkins Ultraviolet Telescope aboard the Space Shuttle Endeavour in March 1995. Simultaneous X-ray observations were performed with the ...
Spinal cord markers in ALS - diagnostic and biomarker considerations
(2012)
Background: Despite considerable involvement of the spinal cord in Amyotrophic Lateral Sclerosis (ALS), current biomarker research is primarily centred on brain imaging and CSF proteomics. In clinical practice, spinal ...