Magnetism, conductivity, and orbital order in (LaMnO3)2n (SrMnO3)n superlattices
Journal Article
·
· Physical Review B
- ORNL
- RIKEN, Japan
- Nanjing National Laboratory of Microstructures, Nanjing University, Nanjing
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.
- Research Organization:
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC)
- DOE Contract Number:
- DE-AC05-00OR22725
- OSTI ID:
- 961774
- Journal Information:
- Physical Review B, Vol. 78, Issue 20; ISSN 1098-0121
- Country of Publication:
- United States
- Language:
- English
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