Publication Type
Journal
Journal Name
Physical Review B
Publication Date
Page Number
201102
Volume
78
Issue
20
Abstract
The modulation of charge density and spin order in LaMnO32n / SrMnO3n n=1–4 superlattices is
studied via Monte Carlo simulations of the double-exchange model. G-type antiferromagnetic barriers in the
SrMnO3 regions with low charge density are found to separate ferromagnetic LaMnO3 layers with high charge
density. A metal-insulator transition with increasing n is observed in the direction perpendicular to the interfaces.
Our simulations provide insight into how disorder-induced localization may cause the metal-insulator
transition occurring at n=3 in experiments.
