The effect of interfacial charge transfer on ferromagnetism in perovskite oxide superlattices
Journal Article
·
· Journal of Applied Physics
- Univ. of California, Davis, CA (United States). Department of Chemical Engineering and Materials Science
- Univ. of California, Davis, CA (United States). Department of Chemical Engineering and Materials Science
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Advanced Light Source (ALS)
- Univ. of California, Davis, CA (United States). Department of Molecular and Cellular Biology
We investigate the structural, magnetic, and electrical properties of superlattices composed of the ferromagnetic/metal La0.7Sr0.3MnO3 and non-magnetic/metal La0.5Sr0.5TiO3 grown on (001)-oriented SrTiO3 substrates. Using a combination of bulk magnetometry, soft x-ray magnetic spectroscopy, and scanning transmission electron microscopy, we demonstrate that robust ferromagnetic properties can be maintained in this superlattice system where charge transfer at the interfaces is minimized. Thus, ferromagnetism can be controlled effectively through the chemical identity and the thickness of the individual superlattice layers.
- Research Organization:
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES); National Science Foundation (NSF)
- DOE Contract Number:
- AC02-05CH11231; FG02-03ER46057; DMR-0747896
- OSTI ID:
- 1212094
- Report Number(s):
- LBNL-5642E
- Journal Information:
- Journal of Applied Physics, Vol. 111, Issue 1; ISSN 0021-8979
- Publisher:
- American Institute of Physics (AIP)
- Country of Publication:
- United States
- Language:
- English
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