Switchable Quantum Anomalous Hall state in a strongly frustrated lattice magnet

Details Switchable Quantum Anomalous Hall state in a strongly frustrated lattice magnet Switchable Quantum Anomalous Hall state in a strongly frustrated lattice magnet

2012-02-15

arxiv.org/abs/1202.3340v1

Physics

Condensed Matter

Strongly Correlated Electrons

4.5 pages, 3 figures

Scientific paper

We establish that the interplay of itinerant fermions with localized magnetic moments on a checkerboard lattice leads to magnetic flux-phases. For weak itineracy the flux-phase is coplanar and the electronic dispersion takes the shape of graphene-like Dirac fermions. Stronger itineracy drives the formation of a non-coplanar, chiral flux-phase, in which the Dirac fermions acquire a topological mass that is proportional to a ferromagnetic spin polarization. Consequently the system self-organizes into a ferromagnetic Quantum Anomalous Hall state in which the direction of its dissipationless edge-currents can be switched by an applied magnetic field.

Affiliated with

Also associated with

No associations

Rating

Switchable Quantum Anomalous Hall state in a strongly frustrated lattice magnet 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 Switchable Quantum Anomalous Hall state in a strongly frustrated lattice magnet, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Switchable Quantum Anomalous Hall state in a strongly frustrated lattice magnet will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-557988