Physics – Condensed Matter – Mesoscale and Nanoscale Physics
Scientific paper
2002-01-22
Phys. Rev. B 66, 115323 (2002).
Physics
Condensed Matter
Mesoscale and Nanoscale Physics
11 pages, 6 figures. The final version, to appear in PRB
Scientific paper
10.1103/PhysRevB.66.115323
We report on a theoretical study of $\nu=2$ bilayer quantum Hall systems with a magnetic field that has a component parallel to the layers. As in the $\nu=1$ case, interlayer phase coherence is closely coupled to electron correlations and the Aharonov-Bohm phases introduced by a parallel magnetic field can have a strong influence on the ground state of the system. We find that response of a $\nu=2$ system to a parallel field is more subtle than that of a $\nu=1$ system because of the interplay between spin and layer degrees of freedom. There is no commensurate-incommensurate transition as the parallel field is increased. Instead, we find a new phase transition which can occur in fixed parallel field as the interlayer bias potential is varied. The transition is driven by the competition between canted antiferromagnetic order and interlayer phase coherence in the presence of the parallel field. We predict a strong singularity in the differential capacitance of the bilayer which can be used to detect the phase transition.
Burkov Andriy
MacDonald Allan. H.
No associations
LandOfFree
$ν=2$ Bilayer Quantum Hall System in Tilted Magnetic Field does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with $ν=2$ Bilayer Quantum Hall System in Tilted Magnetic Field, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and $ν=2$ Bilayer Quantum Hall System in Tilted Magnetic Field will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-153414