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Quantitative Probe of Pairing Correlations in a Cold Fermionic Atom Gas
R. A. Duine, A. H. MacDonald
A quantitative measure of the pairing correlations present in a cold gas of fermionic atoms can be obtained by studying the dependence of RF spectra on hyperfine state populations.…
Electric generation of spin in crystals with reduced symmetry
Dimitrie Culcer, Yugui Yao, Allan MacDonald +1
We propose a simple way of evaluating the bulk spin generation of an arbitrary crystal with a known band structure in the strong spin-orbit coupling limit. We show that, in the pre…
Non-vanishing spin Hall currents in disordered spin-orbit coupling systems
K. Nomura, Jairo Sinova, T. Jungwirth +2
Spin currents that flow perpendicular to the electric field direction are generic in metals and doped semiconductors with spin-orbit coupling. It has recently been argued that the…
Influence of non-local exchange on RKKY interactions in III-V diluted magnetic semiconductors
C. Timm, A. H. MacDonald
The RKKY interaction between substitutional Mn local moments in GaAs is both spin-direction-dependent and spatially anisotropic. In this Letter we address the strength of these ani…
Decoherence processes during active manipulation of excitonic qubits in semiconductor quantum dots
Q. Q. Wang, A. Muller, P. Bianucci +6
Using photoluminescence spectroscopy, we have investigated the nature of Rabi oscillation damping during active manipulation of excitonic qubits in self-assembled quantum dots. Rab…
Bose-Einstein Condensation of Excitons in Bilayer Electron Systems
J. P. Eisenstein, A. H. MacDonald
An ordered state of electrons in solids in which excitons condense was proposed many years ago as a theoretical possibility but has, until recently, never been observed. We review…
Vortex Lattice Structure of Fulde-Ferrell-Larkin-Ovchinnikov Superconductors
Kun Yang, A. H. MacDonald
In superconductors with singlet pairing, the inhomogeneous Fulde-Ferrell-Larkin-Ovchinnikov (FFLO) state is expected to be stabilized by a large Zeeman splitting. We develop an eff…
Spin Transfer Without Spin Conservation
Alvaro S. Núñez, A. H. MacDonald
We propose a general theory of the spin-transfer effects that occur when current flows through inhomogeneous magnetic systems. Our theory does not rest on an appeal to conservation…
Interactions suppress Quasiparticle Tunneling at Hall Bar Constrictions
Emiliano Papa, Allan. H. MacDonald
Tunneling of fractionally charged quasiparticles across a two-dimensional electron system on a fractional quantum Hall plateau is expected to be strongly enhanced at low temperatur…