Answers are grounded in this paper and cite their sources.
Thin films of La0.7Sr0.3MnO3 on MgO show a metal insulator transition and colossal magnetoresistance. The shape of this transition can be explained by intrinsic spatial inhomogeneities, which give rise to a domain structure of conducting and insulating domains at the submicrometer scale. These domains then undergo a percolation transition. The tunneling conductance and tunneling gap measured by scanning tunneling spectroscopy were used to distinguish and visualize these domains.
No takes yet. Share an insight, caveat, or question.
Becker et al. (2002) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: