  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.
