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10 papers · 1 filter
Ultra-fast spin dynamics: the effect of colored noise
U. Atxitia, O. Chubykalo-Fesenko, R. W. Chantrell +2
Recent experimental results have pushed the limits of magnetization dynamics to pico- and femtosecond timescales. This ultra-fast spin dynamics occurs in extreme conditions of stro…
Medium-energy ion-scattering study of strained holmium silicide nanoislands grown on silicon (100)
T. J. Wood, C. Eames, C. Bonet +4
We have used medium-energy ion scattering (MEIS) to quantitatively analyze the structure of holmium silicide islands grown on the Si(100) surface. Structure fitting to the experime…
An Improved Real--Space Genetic Algorithm for Crystal Structure and Polymorph Prediction
N. L. Abraham, M. I. J. Probert
Existing Genetic Algorithms for crystal structure and polymorph prediction can suffer from stagnation during evolution, with a consequent loss of efficiency and accuracy. An improv…
Stroboscopic wavepacket description of non-equilibrium many-electron problems
P. Bokes, F. Corsetti, R. W. Godby
We introduce the construction of a orthogonal wavepacket basis set, using the concept of stroboscopic time propagation, tailored to the efficient description of non-equilibrium ext…
Intersubband spin-orbit coupling and spin splitting in symmetric quantum wells
F. V. Kyrychenko, C. A. Ullrich, I. D'Amico
In semiconductors with inversion asymmetry, spin-orbit coupling gives rise to the well-known Dresselhaus and Rashba effects. If one considers quantum wells with two or more conduct…
Treatment of electron viscosity in quantum conductance
J. Jung, P. Bokes, R. W. Godby
In a recent paper Sai {\it et al.} [1] identified a correction to the DC conductance of nanoscale junctions arising from dynamical exchange-correlation () effects wit…