期刊
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
卷 290, 期 -, 页码 1-7出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jmmm.2004.11.151
关键词
magnetic films; anisotropy-perpendicular; exchange coupling-interlayer; reversal mechanism
Contrary to in-plane multilayer systems with antiferromagnetic (AF) interlayer coupling perpendicular AF-coupled systems create demagnetization fields that prefer a ferromagnetic (FM) alignment of adjacent layers. This provides an opportunity to compensate AF-exchange versus demagnetization energy, thus allowing the coexistence of two very different ground states, one FM and one AF in nature. The general physics of perpendicular AF-coupled systems is introduced, discussed, and exploited via a model system: [(Co/Pt)(x-1)Co/Ru](/v) multilayers. By varying X and N we confirm experimentally the existence and stability of the two-ground-state system within a narrow transition region. (c) 2004 Elsevier B.V. All rights reserved.
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