Indirect excitation of ultrafast demagnetization

dc.contributor.authorVodungbo, Boris
dc.contributor.authorTudu, Bharati
dc.contributor.authorPerron, Jonathan
dc.contributor.authorDelaunay, Renaud
dc.contributor.authorMüller, Leonard
dc.contributor.authorBerntsen, Magnus H.
dc.contributor.authorGrübel, Gerhard
dc.contributor.authorMalinowski, Grégory
dc.contributor.authorWeier, Christian
dc.contributor.authorGautier, Julien
dc.contributor.authorLambert, Guillaume
dc.contributor.authorZeitoun, Philippe
dc.contributor.authorGutt, Christian
dc.contributor.authorJal, Emmanuelle
dc.contributor.authorReid, Alexander H.
dc.contributor.authorGranitzka, Patrick W.
dc.contributor.authorJaouen, Nicolas
dc.contributor.authorDakovski, Georgi L.
dc.contributor.authorMoeller, Stefan
dc.contributor.authorMinitti, Michael P.
dc.contributor.authorMitra, Ankush
dc.contributor.authorCarron, Sebastian
dc.contributor.authorPfau, Bastian
dc.contributor.authorKorff Schmising, Clemens von
dc.contributor.authorSchneider, Michael
dc.contributor.authorEisebitt, Stefan
dc.contributor.authorLüning, Jan
dc.date.accessioned2020-05-20T16:07:57Z
dc.date.available2020-05-20T16:07:57Z
dc.date.issued2016
dc.description.abstractDoes the excitation of ultrafast magnetization require direct interaction between the photons of the optical pump pulse and the magnetic layer? Here, we demonstrate unambiguously that this is not the case. For this we have studied the magnetization dynamics of a ferromagnetic cobalt/palladium multilayer capped by an IR-opaque aluminum layer. Upon excitation with an intense femtosecond-short IR laser pulse, the film exhibits the classical ultrafast demagnetization phenomenon although only a negligible number of IR photons penetrate the aluminum layer. In comparison with an uncapped cobalt/palladium reference film, the initial demagnetization of the capped film occurs with a delayed onset and at a slower rate. Both observations are qualitatively in line with energy transport from the aluminum layer into the underlying magnetic film by the excited, hot electrons of the aluminum film. Our data thus confirm recent theoretical predictions.en
dc.description.sponsorshipBMBF, 05K10KTB, Verbundprojekt: FSP 301 - FLASH: Nanoskopische Systeme. Teilprojekt 1.1: Universelle Experimentierkammer für Streuexperimente mit kohärenten Femtosekunden-Röntgenpulsen Multi Purpose Coherent Scattering Chamber for FLASH and XFEL 'MPscatt'en
dc.description.sponsorshipBMBF, 05K13KT4, Verbundprojekt FSP 302 - Freie-Elektronen-Laser: Nanoskopische Systeme. Teilprojekt 1: Split-and-Delay Instrument für die European XFEL Beamline Materials Imaging and Dynamicsen
dc.description.sponsorshipDFG, 170620586, SFB 925: Licht-induzierte Dynamik und Kontrolle korrelierter Quantensystemeen
dc.identifier.eissn2045-2322
dc.identifier.pmid26733106en
dc.identifier.urihttps://depositonce.tu-berlin.de/handle/11303/11184
dc.identifier.urihttp://dx.doi.org/10.14279/depositonce-10075
dc.language.isoen
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.subject.ddc530 Physikde
dc.subject.otherexcitationen
dc.subject.otherdemagnetizationen
dc.subject.othermagnetization dynamicsen
dc.subject.otherferromagnetic multilayeren
dc.subject.othercobalten
dc.subject.otherpalladiumen
dc.titleIndirect excitation of ultrafast demagnetizationen
dc.typeArticleen
dc.type.versionpublishedVersionen
dcterms.bibliographicCitation.articlenumber18970
dcterms.bibliographicCitation.doi10.1038/srep18970
dcterms.bibliographicCitation.issue1
dcterms.bibliographicCitation.journaltitleScientific Reportsen
dcterms.bibliographicCitation.originalpublishernameSpringer Natureen
dcterms.bibliographicCitation.originalpublisherplaceLondonen
dcterms.bibliographicCitation.volume6
tub.accessrights.dnbfree
tub.affiliationFak. 2 Mathematik und Naturwissenschaften::Inst. Optik und Atomare Physik::FG Röntgenoptik und Nanometer-Optikde
tub.affiliation.facultyFak. 2 Mathematik und Naturwissenschaftende
tub.affiliation.groupFG Röntgenoptik und Nanometer-Optikde
tub.affiliation.instituteInst. Optik und Atomare Physikde
tub.publisher.universityorinstitutionTechnische Universität Berlinde

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