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20 papers · 2 filters
Plasmonic performance of AuAgCu alloys from many-body perturbation theory
Okan K. Orhan, David D. O'Regan
We present a detailed appraisal of the optical and plasmonic properties of ordered alloys of the form AuAgCu, as predicted by means of first-principles many-b…
Suppression of the Shear Raman Mode in Defective Bilayer MoS2
Pierce Maguire, Clive Downing, Jakub Jadwiszczak +7
We investigate the effects of lattice disorders on the low frequency Raman spectra of bilayer MoS2. The bilayer MoS2 was subjected to defect engineering by irradiation with a 30 ke…
Imaging Domains in a Zero-Moment Half Metal
K. E. Siewierska, N. Teichert, R. Schäfer +1
We have a choice of methods for examining domains at the surface of a ferromagnet that depend on probing the stray field distribution, but these methods do not work in antiferromag…
Probing the nanoscale origin of strain and doping in graphene-hBN heterostructures
Tom Vincent, Vishal Panchal, Tim Booth +4
We use confocal Raman microscopy and modified vector analysis methods to investigate the nanoscale origin of strain and carrier concentration in exfoliated graphene-hexagonal boron…
Quantifying the factors limiting rate-performance in battery electrodes
Ruiyuan Tian, Sang-Hoon Park, Paul J. King +4
A significant problem associated with batteries is the rapid reduction of charge-storage capacity with increasing charge/discharge rate. For example, improving this rate-performanc…
Non-trivial spatial dependence of the spin torques in L1 FePt-based tunnelling junctions
Mario Galante, Matthew O. A. Ellis, Stefano Sanvito
We present an {\it ab-initio} study of the spin-transfer torque in a Fe/MgO/FePt/Fe magnetic tunnel junctions. We consider a FePt film with a thickness up to six unit cells, either…