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dc.contributor.authorMCGILP, JOHNen
dc.contributor.authorFLEISCHER, KARSTENen
dc.contributor.authorCUNNIFFE, JOHN PATRICKen
dc.date.accessioned2010-04-20T15:56:24Z
dc.date.available2010-04-20T15:56:24Z
dc.date.issued2010en
dc.date.submitted2010en
dc.identifier.citationJ.F. McGilp, L. Carroll, K. Fleischer, J.P. Cunniffe, S. Ryan, Magnetic second-harmonic generation from interfaces and nanostructures, Journal of Magnetism and Magnetic Materials, 322, 9-12, 2010, 1488 - 1493en
dc.identifier.otherYen
dc.identifier.urihttp://hdl.handle.net/2262/39139
dc.descriptionPUBLISHEDen
dc.description.abstractMagneto-optic techniques provide non-contact and non-destructive characterization of magnetic materials. This includes embedded magnetic nanostructures, which are accessible due to the large penetration depth of optical radiation. The linear magneto-optic Kerr effect is widely used in the growth and characterization of ultra-thin magnetic films and can show monolayer sensitivity. Nonlinear magnetic second-harmonic generation (MSHG) is a more difficult and expensive technique but, uniquely, can measure the surface and interface magnetism of centrosymmetric magnetic films with sub-monolayer sensitivity. MSHG is briefly reviewed and examples from high symmetry interfaces and nanostructures described. Low symmetry structures are more difficult to characterize, however, because of the large number of tensor components that may contribute to the signal. An important class of low symmetry systems exploits vicinal substrates to grow aligned magnetic nanostructures by self-organization. These structures have a high proportion of magnetic step or edge atoms relative to the terrace atoms, and the overall magnetic response is expected to contain significant contributions from these different magnetic regions. It is shown that contributions from these different regions can be identified using normal incidence (NI) MSHG. This new approach is used to determine hysteresis loops from Au-capped Fe monolayers grown on a vicinal W(1 1 0) substrate. Temperature-dependent studies of the MSHG contrast also allow Curie temperatures to be determined. This experimental procedure and phenomenology opens up low symmetry magnetic interfaces and aligned nanostructures to characterization by MSHG.en
dc.format.extent1488en
dc.format.extent1493en
dc.language.isoenen
dc.relation.ispartofseriesJournal of Magnetism and Magnetic Materialsen
dc.relation.ispartofseries322en
dc.relation.ispartofseries9-12en
dc.rightsYen
dc.subjectNanostructureen
dc.subjectSecond-harmonicen
dc.titleMagnetic second-harmonic generation from interfaces and nanostructuresen
dc.typeJournal Articleen
dc.contributor.sponsorScience Foundation Ireland (SFI)en
dc.type.supercollectionscholarly_publicationsen
dc.type.supercollectionrefereed_publicationsen
dc.identifier.peoplefinderurlhttp://people.tcd.ie/jmcgilpen
dc.identifier.peoplefinderurlhttp://people.tcd.ie/fleiscken
dc.identifier.rssinternalid64706en
dc.subject.TCDThemeNanoscience & Materialsen
dc.identifier.rssurihttp://dx.doi.org/10.1016/j.jmmm.2009.03.081en


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