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Predicting the Curie temperature of ferromagnets using machine learning
(American Physical Society (APS), 2019)
The magnetic properties of a material are determined by a subtle balance between the various interactions at play, a fact that makes the design of new magnets a daunting task. High-throughput electronic structure theory ...
Dielectric focusing elements for integrated optics
(Trinity College Dublin. School of Physics. Discipline of Physics, 2018)
The ability to propagate light around a `circuit' on a single chip has an abundance of applications. Connecting different elements can bring huge functionality to a minuscule device---as evidenced by integrated electronic ...
Electric-field-switchable magnets: The case of BaNiF4
(American Physical Society, 2006)
We show, using the antiferromagnetic ferroelectric BaNiF4 as a model system, that the ?weak? magnetic
order arising from a polar structural distortion in a ferroelectric magnet due to the Dzyaloshinskii-Moriya
interaction ...
Mott-Hubbard transition and spin-liquid state on the pyrochlore lattice
(2016)
The pyrochlore lattice involves corner-sharing tetrahedra and the resulting geometric frustration is believed to suppress any antiferromagnetic order for Mott insulators on this structure. There are nevertheless short-range ...
Magnetic study of Fe3O4 nanoparticles incorporated within mesoporous silicon
(Electrochemical Society, 2010)
Porous silicon PS matrices with oriented, separated pores grown perpendicular to the surface are used as a template for the
incorporation of magnetite nanoparticles. The Fe3O4 particles used for infiltration into the ...
Prospect for detecting magnetism of a single impurity atom using electron magnetic chiral dichroism
(American Physical Society, 2019)
Dopants, even single atoms, can influence the electrical and magnetic properties of materials. Here we demonstrate the opportunity for detecting the magnetic response of an embedded magnetic impurity in a nonmagnetic host ...
The design of a double-tuned two-port surface resonator and its application to in vivo Hydrogen- and Sodium-MRI
(2012)
The design and construction of a two-port surface transceiver resonator for both 1H and 23Na-MRI in the rodent brain at 7T is described. Double-tuned resonators are required for accurately co-registering multi-nuclei ...
Measurement of Degree of Order in Mixed Polarised Fluorescent Polymer Liquid Crystal Films
(1998)
Raman spectroscopy is used to investigate the degree of order found in in situ photopolymerised films exhibiting polarised emission. Studies indicate that the mixed system shows differing degrees of order for its two ...