Journal
APPLIED PHYSICS LETTERS
Volume 95, Issue 10, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.3222944
Keywords
barium compounds; exchange interactions (electron); ferromagnetic materials; lanthanum compounds; magnetic hysteresis; magnetic multilayers; paramagnetic materials; X-ray scattering
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Funding
- Korean Government (MOEHRD) [KRF-2007-313-C00251]
- U. S. Department of Energy, Office of Science [DE-AC02-06CH11357]
- NSF Materials Science and Engineering Research Center
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In superlattices made of a half metallic ferromagnet La2/3Ba1/3MnO3(LBMO) and a metallic paramagnet LaNiO3(LNO), the field dependence of the LBMO magnetization was studied using depth- and element-sensitive x-ray resonant magnetic scattering measurements. The superlattices have ten bilayers of LBMO and LNO, and the LBMO layers were antiferromagnetically coupled across LNO spacer layers. From the x-ray measurements, the magnetic hysteresis loop of each LBMO layer was obtained, and subsequently the obtained layer-resolved LBMO hysteresis loops were utilized to determine the interlayer exchange coupling.
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