Co nanodot arrays grown on a GdAu2 template: substrate/nanodot antiferromagnetic coupling.
basic_science · Level V
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- Record sourced from PubMed, PMID 24798248.
- Also identified by DOI 10.1021/nl403471z.
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Abstract
Controlling anisotropy and exchange coupling in patterned magnetic nanostructures is the key for developing advanced magnetic storage and spintronic devices. We report on the antiferromagnetic interaction between a Co nanodot array and its supporting GdAu2 nanotemplate that induces large anisotropy values in individual Co nanodots. In clear contrast with nonmagnetic Au substrates, GdAu2 triggers an earlier switch from out-of-plane anisotropy in monatomic high dots to in-plane when the dot height becomes biatomic.