The orbital-selective Mott phase (OSMP) of multiorbital Hubbard models has been extensively analyzed before using static and dynamical mean-field approximations. In parallel, the properties of Block states (antiferromagnetically coupled ferromagnetic spin clusters) in Fe-based superconductors have also been much discussed. The present effort uses numerically exact techniques in one-dimensional systems to report the observation of Block states within the OSMP regime, connecting two seemingly independent areas of research, and providing analogies with the physics of Double-Exchange models.
@article{arxiv.1402.1689,
title = {Exotic magnetic order in the orbital-selective Mott regime of multiorbital systems},
author = {Julian Rincon and Adriana Moreo and Gonzalo Alvarez and Elbio Dagotto},
journal= {arXiv preprint arXiv:1402.1689},
year = {2014}
}
Comments
4 pages, 4 figures + supplementary material. Accepted in Phys. Rev. Lett