334 citations · 654 across the 19 of their papers we have counts for
9 papers · 1 filter
Charge Sensing of an Artificial H2+ Molecule
M. Pioro-Ladriere, M. R. Abolfath, P. Zawadzki +4
We report charge detection studies of a lateral double quantum dot with controllable charge states and tunable tunnel coupling. Using an integrated electrometer, we characterize th…
Critical Currents of Ideal Quantum Hall Superfluids
M. Abolfath, A. H. MacDonald, L. Radzihovsky
Filling factor bilayer electron systems in the quantum Hall regime have an excitonic-condensate superfluid ground state when the layer separation is less than a critical…
Optical spin transfer in ferromagnetic semiconductors
J. Fernández-Rossier, Alvaro S. Núñez, M. Abolfath +1
Circularly polarized laser pulses that excite electron-hole pairs across the band gap of (III,Mn)V ferromagnetic semiconductors can be used to manipulate and to study collective ma…
Theory of the tunneling resonances of the bilayer electron systems in strong magnetic field
M. Abolfath, R. Khomeriki, K. Mullen
We develop a theory for the anomalous interlayer conductance peaks observed in bilayer electron systems at nu=1. Our model shows the that the size of the peak at zero bias decrease…
Solitons in polarized double layer quantum Hall systems
R. Khomeriki, M. Abolfath, K. Mullen
A new manifestation of interlayer coherence in strongly polarized double layer quantum Hall systems with total filling factor in the presence of a small or zero tunneling is…
Global phase diagram of bilayer quantum Hall ferromagnets
M. Abolfath, L. Radzihovsky, A. H. MacDonald
We present a microscopic study of the interlayer spacing d versus in-plane magnetic field phase diagram for bilayer quantum Hall (QH) pseudo-ferromagnets. In addition…
First order phase transitions driven by in-plane magnetic field in odd-integral quantum Hall bilayer electron systems
M. Abolfath
This paper has been withdrawn by the author.
The field theory of Skyrme lattices in quantum Hall ferromagnets
M. Abolfath, M. R. Ejtehadi
We report the application of the nonlinear model to study the multi-skyrmion problem in the quantum Hall ferromagnet system. We show that the ground state of the system can be…
A critical comparison of classical field theory and microscopic wavefunctions for skyrmions in quantum Hall ferromagnets
M. Abolfath, J. J. Palacios, H. A. Fertig +2
We report on a study of the classical field theory description of charged skyrmions in quantum Hall ferromagnets. The appropriate field theory is a non-linear model generalized…