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Exchange coupling in ferromagnetic/antiferromagnetic/ferromagnetic Pd/Co (n)/NiO/Co trilayers with different Pd/Co anisotropy
T.; Ning Yu, X. K.; Liu, W.; Feng, J. N.; Kim, D.; Choi, C. J.; Zhang, Z. D.
2015
Source PublicationJournal of Magnetism and Magnetic Materials
ISSN0304-8853
Volume385Pages:230-235
AbstractExchange coupling in NiO/Co bilayers and [Pd/Co(t(Co))](n)/NiO/Co trilayers prepared by magnetron sputtering has been investigated. With decreasing thickness (t(Co)) of the Co layers in [Pd/Co] multilayers (MLs) and increasing number of [Pd/Co] repeats (n), the ferromagnetic easy axis of the [Pd/Co] MLs switches from in-plane to out-of-plane direction. Ferromagnetic and non-collinear interlayer couplings between the [Pd/Co] MLs and the Co layer across the antiferromagnetic NiO spacer are found in trilayers. After cooling at in-plane and out-of-plane remanent state, respectively, for t(Co)=1 nm and n=2, a larger inplane exchange bias held of 724 Oe is observed which vanishes at temperatures above 90 K which is the same as the in-plane blocking temperature observed in the NiO/Co bilayer. For t(Co)=0.3 nm and n=7, the in-plane blocking temperature in the trilayer enhances up to 210 K, which strongly depends on orientation and strength of the ferromagnetic [Pd/Co] ML anisotropy axis. (C) 2015 Elsevier B.V. All rights reserved.
description.department[yu, t. ; ning, x. k. ; liu, w. ; feng, j. n. ; zhang, z. d.] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china. [kim, d. ; choi, c. j.] korea inst mat sci, powder & ceram div, chang won 642831, south korea. ; liu, w (reprint author), chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china. ; wliu@imr.ac.cn
KeywordMagnetron Sputtering Inter Layer Coupling Exchange Bias Magnetic-anisotropy Multilayers Bias Films Field Model
URL查看原文
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/74009
Collection中国科学院金属研究所
Recommended Citation
GB/T 7714
T.,Ning Yu, X. K.,Liu, W.,et al. Exchange coupling in ferromagnetic/antiferromagnetic/ferromagnetic Pd/Co (n)/NiO/Co trilayers with different Pd/Co anisotropy[J]. Journal of Magnetism and Magnetic Materials,2015,385:230-235.
APA T..,Ning Yu, X. K..,Liu, W..,Feng, J. N..,Kim, D..,...&Zhang, Z. D..(2015).Exchange coupling in ferromagnetic/antiferromagnetic/ferromagnetic Pd/Co (n)/NiO/Co trilayers with different Pd/Co anisotropy.Journal of Magnetism and Magnetic Materials,385,230-235.
MLA T.,et al."Exchange coupling in ferromagnetic/antiferromagnetic/ferromagnetic Pd/Co (n)/NiO/Co trilayers with different Pd/Co anisotropy".Journal of Magnetism and Magnetic Materials 385(2015):230-235.
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