Journal
APPLIED PHYSICS LETTERS
Volume 93, Issue 19, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.3013333
Keywords
antiferromagnetic materials; Curie temperature; magnetic anisotropy; magnetic moments; magnetic multilayers; strontium compounds
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Funding
- U.S. Department of Energy, Office of Science [DE-AC02-06CH11357]
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The coupled interfacial Mn and Ru spin configurations in a SrRuO(3)(SRO)/SrMnO(3)(SMO) superlattice are investigated with x-ray resonant techniques. With an out-of-plane applied field H, a net Mn moment is induced opposite to (along) H below (above) SRO Curie temperature T(C), due to changes in interfacial antiferromagnetic Ru-Mn coupling. In comparison with the Mn moment induced along an out-of-plane field below T(C), the Mn moment induced along an in-plane field is five (three) times smaller below (above) T(C), due to frustration in the Ru-Mn coupling. Despite its in-plane anisotropy, the G-type antiferromagnetic SMO favors out-of-plane over in-plane canting of Mn moments.
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