Please use this identifier to cite or link to this item: https://doi.org/10.1016/j.jmmm.2009.02.029
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dc.titleEvolution of domain walls and reversal mechanism in exchange-coupled nanolayers
dc.contributor.authorZhao, G.P.
dc.contributor.authorChen, L.
dc.contributor.authorHuang, C.W.
dc.contributor.authorFeng, Y.P.
dc.date.accessioned2014-10-16T09:24:32Z
dc.date.available2014-10-16T09:24:32Z
dc.date.issued2009-08
dc.identifier.citationZhao, G.P., Chen, L., Huang, C.W., Feng, Y.P. (2009-08). Evolution of domain walls and reversal mechanism in exchange-coupled nanolayers. Journal of Magnetism and Magnetic Materials 321 (15) : 2322-2326. ScholarBank@NUS Repository. https://doi.org/10.1016/j.jmmm.2009.02.029
dc.identifier.issn03048853
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/96531
dc.description.abstractThe demagnetization process for an exchange-coupled double-nanolayer system with perpendicular easy axes has been investigated within a micromagnetic model. The nucleation field, coercivity and angular distribution of the magnetization, have been obtained as functions of the thickness L of the misaligned layer, the layer with the easy axis perpendicular to the applied field. It is found that the coercivity is identical to the nucleation field only for very small L. For larger L (larger than a quarter of its Bloch wall width), the nucleation field is negative while the coercivity saturates at 0.414HK, where HK is the anisotropy field. Thus for larger L, the coercivity mechanism is self-pinning rather than pure nucleation. This self-pinning has both attributes of traditional nucleation and pinning. © 2009 Elsevier B.V. All rights reserved.
dc.description.urihttp://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1016/j.jmmm.2009.02.029
dc.sourceScopus
dc.subjectCoercivity mechanism
dc.subjectDomain-wall evolution
dc.subjectHysteresis loop
dc.subjectNanolayer
dc.typeArticle
dc.contributor.departmentPHYSICS
dc.description.doi10.1016/j.jmmm.2009.02.029
dc.description.sourcetitleJournal of Magnetism and Magnetic Materials
dc.description.volume321
dc.description.issue15
dc.description.page2322-2326
dc.description.codenJMMMD
dc.identifier.isiut000266036200013
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