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8 papers · 2 filters
Hole spin relaxation in [001] strained asymmetric Si/SiGe and Ge/SiGe quantum wells
P. Zhang, M. W. Wu
Hole spin relaxation in [001] strained asymmetric Si/SiGe (Ge/SiGe) quantum wells is investigated in the situation with only the lowest hole subband…
Infinite spin diffusion length of any spin polarization along direction perpendicular to effective magnetic field from Dresselhaus and Rashba spin-orbit couplings with identical strengths in (001) GaAs quantum wells
K. Shen, M. W. Wu
In this note, we show that the latest spin grating measurement of spin helix by Koralek {\em et al.} [Nature {\bf 458}, 610 (2009)] provides strong evidence of the infinite spin di…
"Narrow" Graphene Nanoribbons Made Easier by Partial Hydrogenation
Hongjun Xiang, Erjun Kan, Su-Huai Wei +2
It is a challenge to synthesize graphene nanoribbons (GNRs) with narrow widths and smooth edges in large scale. Our first principles study on the hydrogenation of GNRs shows that t…
Hydrogen in Ag-doped ZnO: theoretical calculations
H. Y. He, J. Hu, B. C. Pan
Based on density functional theory calculations, we systematically investigate the behaviors of a H atom in Ag-doped ZnO, involving the preference sites, diffusion behaviors, the e…
Electron spin relaxation in n-type InAs quantum wires
C. Lü, H. C. Schneider, M. W. Wu
We investigate the electron spin relaxation of -type InAs quantum wires by numerically solving the fully microscopic kinetic spin Bloch equations with the relevant scattering ex…
Chemical functionalization on planar polysilane and graphane
Ning Lu, Zhenyu Li, Jinlong Yang
Two dimensional materials are important for electronics applications. A natural way for electronic structure engineering on two dimensional systems is on-plane chemical functionali…