Field Induced Orbital Antiferromagnetism in Mott Insulators

Details Field Induced Orbital Antiferromagnetism in Mott Insulators Field Induced Orbital Antiferromagnetism in Mott Insulators

2009-05-29

arxiv.org/abs/0905.4871v1

Physics

Condensed Matter

Strongly Correlated Electrons

4 pages, 3 figures

Scientific paper

We report on a new electromagnetic phenomenon that emerges in Mott insulators, i.e., materials that do not conduct electricity because of strong electronic Coulomb repulsion. The phenomenon manifests as antiferromagnetic ordering due to orbital electric currents which are spontaneously generated from the coupling between spin currents and an external homogenous magnetic field. This novel spin-charge current effect provides the mechanism to detect the so far elusive spin currents by means of unpolarized neutron scattering, nuclear magnetic resonance or muon spectroscopy. We illustrate this mechanism by solving a half-filled Hubbard model on a frustrated ladder, a simple but nontrivial case of strongly interacting electrons.

Affiliated with

Also associated with

No associations

Rating

Field Induced Orbital Antiferromagnetism in Mott Insulators 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 Field Induced Orbital Antiferromagnetism in Mott Insulators, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Field Induced Orbital Antiferromagnetism in Mott Insulators will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-527331