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Now showing items 1281-1290 of 2111
I-V curves of Fe/MgO (001) single- and double-barrier tunnel junctions.
(2008)
In this work, we calculate with
ab initio
methods the current-voltage characteristics for ideal single- and
double-barrier Fe/MgO
001
magnetic tunnel junctions. The current is calculated in the phase-coherent ...
Transport characteristics of magnetite thin films grown onto GaAs substrates
(IEEE, 2004)
Magnetite thin films with a preferred (111) orientation have been deposited by reactive dc magnetron sputtering from a pure Fe target onto (100) GaAs substrates at 400??C. The films show a clear Verwey transition in both ...
Cerium dioxide redox cycle for fuel production
(Trinity College (Dublin, Ireland). School of Physics, 2015)
The following thesis covers a number of topics related to thermochemical fuel production using the CeO2 redox cycle. Chapter 1 gives an introduction to the topic, providing motivation, historical development and the main ...
Reflectance anisotropy spectroscopy of Si(111)-(3 x 1)Li and Ag surfaces
(2013)
The Si(111)-(3
×
1)Li and Ag surface structures consist of Si honeycomb chains separated by channels
occupied by Li or Ag atoms. The dimerization of neighboring Ag atoms results in a larger
c
(12
×
2)Ag
superstructure. ...
[Alii] in the ultraviolet spectrum of the symbiotic star RR Telescopii
(Blackwell, 1999)
An inspection of a GHRS/HST spectrum of the symbiotic star RR Telescopii reveals the presence of the [Alii] 3s^2 ^1S - 3s3p ^3P_2 line at a vacuum wavelength of 2661.06+/-0.08?, 8.89+/-0.08? away from the Alii] 3s^2 ^1S - ...
Stiffness and atomic-scale friction in superlubricant MoS<sub>2</sub> bilayers
(2023)
By using ab-initio-accurate force fields and molecular dynamics simulations we demonstrate that the layer stiffness has profound effects on the superlubricant state of two-dimensional van der Waals heterostructures. These ...
Observation of antiferromagnetic coupling in epitaxial ferrite films
(2006)
Defects in ferrite can change the local magnetic coupling from ferromagnetic to strongly antiferromagnetic. In eptiaxial magnetite (Fe3O4) films, defects locally altering exchange interaction, i.e., ?antiphase boundaries? ...
Phase-matched gratings for enhanced forward degenerate four-wave mixing
(1995)
A phase-matched grating to enhance the second-order diffracted signals generated by forward degenerate four-wave mixing has been proposed and demonstrated for the first time to the authors' knowledge. Experiments have been ...