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12 papers · 2 filters
Effect of Singwi-Tosi-Land-Sjölander local field correction on spin relaxation in -type GaAs quantum wells at low temperature
J. Zhou
We study the effect of the Singwi-Tosi-Land-Sjölander local field correction on spin relaxation/dephasing in -type GaAs quantum wells at low temperature by constructing and nume…
Intense terahertz laser fields on a two-dimensional hole gas with Rashba spin-orbit coupling
Y. Zhou
We investigate the influence on the density of states and the density of spin polarization for a two-dimensional hole gas with Rashba spin-orbit coupling under intense terahertz la…
Will Zigzag Graphene Nanoribbon Turn to Half Metal under Electric Field?
Er-Jun Kan, Zhenyu Li, Jinlong Yang +1
At B3LYP level of theory, we predict that the half-metallicity in zigzag edge graphene nanoribbon (ZGNR) can be realized when an external electric field is applied across the ribbo…
Control of spin coherence in semiconductor double quantum dots
Y. Y. Wang, M. W. Wu
We propose a scheme to manipulate the spin coherence in vertically coupled GaAs double quantum dots. Up to {\em ten} orders of magnitude variation of the spin relaxation and {\em t…
Triplet-singlet relaxation in semiconductor single and double quantum dots
K. Shen, M. W. Wu
We study the triplet-singlet relaxation in two-electron semiconductor quantum dots. Both single dots and vertically coupled double dots are discussed. In our work, the electron-ele…
Spin relaxation in -type GaAs quantum wells with transient spin grating
M. Q. Weng, M. W. Wu, H. L. Cui
By solving the kinetic spin Bloch equations, we study the time evolution of the transient spin grating, whose spin polarization varies periodically in real space, confined in (001)…