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Now showing items 561-570 of 2111
Ultrahigh conductivity in Weyl semimetal NbAs nanobelts
(2019)
In two-dimensional (2D) systems, high mobility is typically achieved in low-carrier-density semiconductors and semimetals. Here, we discover that the nanobelts of Weyl semimetal NbAs maintain a high mobility even in the ...
High-Performance Spin Filters Based on 1,2,4,5-Tetrahydroxybenzene Molecules Attached to Bulk Nickel Electrodes
(2021)
Achieving highly spin-polarized current at the nanoscale is of paramount importance in molecular spintronics. Using a self-consistent ab initio approach that combines the nonequilibrium Green’s function formalism with spin ...
Atomic force microscope cantilevers for combined thermomechanical data writing and reading
(2001)
Heat conduction governs the ultimate writing and reading capabilities of a thermomechanicaldata storage device. This work investigates transient heat conduction in a resistively heated atomic force microscope cantilever ...
Production of Molybdenum Trioxide Nanosheets by Liquid Exfoliation and Their Application in High-Performance Supercapacitors
(2014)
Here, we demonstrate a simple method to exfoliate layered molybdenum trioxide (MoO3) crystallites to give multilayer MoO3 nanosheets dispersed in solvents. Exfoliation is achieved by sonicating MoO3 powder in the presence ...
Theoretical studies of doped carbon nanotube-based materials
(Trinity College (Dublin, Ireland). School of Physics, 2008)
For the last fifteen years, carbon nanotubes have piqued the interest of many in the
materials research community, due to their superlative individual characteristics.
One possible route to their technological exploitation ...
Atomic scale influences on the tribology of nano to meso-scale systems
(Trinity College (Dublin, Ireland). School of Physics, 2015)
It has been known for many years that atomic scale effects can directly influence the tribological behaviour over a wide variety of contact sizes ranging from the nano-scale to macroscale. A newly developed load and depth ...
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
, ...
Modification and analysis of layered materials with charged particle beams
(Trinity College (Dublin, Ireland). School of Physics, 2014)
In this work a range of highly focused charged particle beams were used to modify the structure and geometry of materials. Recently discovered two-dimensional (2D) materials were the focus of the work. Fundamental studies ...
Spin-flip inelastic electron spectroscopy
(Trinity College (Dublin, Ireland). School of Physics, 2012)
Recent experimental advances in scanning tunneling microscopy make the measurement
of the conductance spectra of isolated and magnetically coupled atoms on nonmagnetic
substrates possible. The typical example is that of ...
Nontrivial spatial dependence of the spin torques in L10 FePt-based tunneling junctions
(2019)
We present an ab initio study of the spin-transfer torque in Fe/MgO/FePt/Fe magnetic tunnel junctions. We consider an FePt film with a thickness up to six unit cells, either in direct contact with the MgO spacer or with ...