Search
Now showing items 1-10 of 436
Spin-filtering efficiency of ferrimagnetic spinels CoFe2O4 and NiFe2O4
(2013)
We assess the potential of the ferrimagnetic spinel ferrites CoFe
2
O
4
and NiFe
2
O
4
to act as spin filtering barriers
in magnetic tunnel junctions. Our study is based on the electronic structure calculated by ...
Imaging and identification of point defects in PtTe2
(2021)
The properties and performance of two-dimensional (2D) materials can be greatly affected by point defects. PtTe2, a 2D material
that belongs to the group 10 transition metal dichalcogenides, is a type-II Dirac semimetal, ...
Influence of magnetic field on hydrogen reduction and co-reduction in the Cu/CuSO4 system
(2010)
The effects of an applied magnetic field of up to 5 T on hydrogen evolution and cathodic overpotential were studied for H2SO4 and an acidic Cu/CuSO4 system. Cyclic voltammetry, potentiostatic and galvanostatic deposition ...
A direct-write, resistless hard mask for rapid nanoscale patterning of diamond
(2011)
We introduce a simple, resist-free dry etch mask for producing patterns in diamond, both bulk and thin deposited films. Direct gallium ion beam exposure of the native diamond surface to doses as low as 1016 cm-2 forms a ...
Extracting the hysteresis loops of magnetic interfaces from optical second-harmonic intensity measurements
(2007)
Surface- and interface-sensitive optical techniques, such as optical second-harmonic generation (SHG), allow the buried interfacial structure of centrosymmetric materials to be explored through thin capping layers, and ...
Graphene-based spin-pumping transistor
(2010)
We demonstrate with a fully quantum-mechanical approach that graphene can function as gate-controllable
transistors for pumped spin currents, i.e., a stream of angular momentum induced by the precession of adjacent
mag ...
Electric field response of strongly correlated one-dimensional metals: a Bethe-Ansatz density functional theory study
(2010)
We present a theoretical study on the response properties to an external electric field of strongly correlated
one-dimensional metals. Our investigation is based on the recently developed Bethe ansatz local-density
app ...
Temperature dependent coercivity crossover in pseudo-spin-valve magnetic tunnel junctions with perpendicular anisotropy
(2011)
We report the temperature dependent collapse of tunnel magnetoresistance (TMR) in perpendicular anisotropy magnetic tunnel junctions (pMTJs) with AlO(x) barriers and (Co/Pt)(3) multilayer electrodes, due to the coercivity ...
Magnetism and Antiferroelectricity in MgB6
(2012)
We report on a density functional theory study demonstrating the coexistence of weak ferromagnetism and antiferroelectricity in boron-deficient MgB 6. A boron vacancy produces an almost one dimensional extended molecular ...