Chen, C.T.

Idzerda, Y.U.

Rudolf, P.

Sette, F.

Tjeng, L.H.

English

ARTS repository - University of Groningen

   University of GroningenMagnetic properties of ultrathin films of Ni/Cu(001) probed by soft-x-ray magnetic circulardichroismTjeng, L.H.; Idzerda, Y.U.; Rudolf, P.; Sette, F.; Chen, C.T.Published in:Journal of Applied PhysicsIMPORTANT NOTE: You are advised to consult the publisher's version (publisher's PDF) if you wish to cite fromit. Please check the document version below.Document VersionPublisher's PDF, also known as Version of recordPublication date:1991Link to publication in University of Groningen/UMCG research databaseCitation for published version (APA):Tjeng, L. H., Idzerda, Y. U., Rudolf, P., Sette, F., & Chen, C. T. (1991). Magnetic properties of ultrathin filmsof Ni/Cu(001) probed by soft-x-ray magnetic circular dichroism. Journal of Applied Physics, 70(10).CopyrightOther than for strictly personal use, it is not permitted to download or to forward/distribute the text or part of it without the consent of theauthor(s) and/or copyright holder(s), unless the work is under an open content license (like Creative Commons).The publication may also be distributed here under the terms of Article 25fa of the Dutch Copyright Act, indicated by the “Taverne” license.More information can be found on the University of Groningen website: https://www.rug.nl/library/open-access/self-archiving-pure/taverne-amendment.Take-down policyIf you believe that this document breaches copyright please contact us providing details, and we will remove access to the work immediatelyand investigate your claim.Downloaded from the University of Groningen/UMCG research database (Pure): http://www.rug.nl/research/portal. For technical reasons thenumber of authors shown on this cover page is limited to 10 maximum.Magnetic properties of ultrathin films of Ni/Cu(QQl) probed by soft-x-ray magnetic circular dichroism (abstract) L. H. Tjeng A T&T Bell Laboratories, Murray Hill, New Jersey 07974 Y. U. ldzerda Naval Research Laboratory, Washington, DC 203 75 P. Rudolf, F. Sette, and C. T. Chen AT&T Bell Laboratories, Murray Hill, New Jersey 07974 The magnetic properties of MBE-grown ultrathin Ni films on a Cu( 001) substrate are investigated using soft-x-ray magnetic circular dichroism (SXMCD) spectroscopic technique. These measurements are carried out by recording Ni L,,, absorption spectra with highly circularly polarized soft x rays recently obtained at the AT&T Bell Laboratories Dragon synchrotron radiation beamline.’ For low Ni coverages, no MCD effect along the ( 100) direction is observed at room temperature, while for intermediate coverages, the MCD effect becomes appreciable and increases to its bulk value at -25 ML. With only the assumption that the unoccupied density of states of Ni lie mainly in the minority bands, the amount of the MCD effect can be related to the magnetic moment. The thickness and temperature dependence of the magnetic moment obtained from our SXMCD measurements are compared with those of Ni/Cu( 111) obtained from magneto-optical data.2 The advantages and differences between the SXMCD and MOKE techniques are discussed. The novel SXMCD technique allows for element specific magnetic characterization of a variety of interesting structural architectures including 2 D films, dilute impurities, and disordered matrices. ‘C T. Chen, F. Sette, Y. Ma, and S. Modesti, Phys. Rev. B 42, 7262 (1990). ’ C. A. Ballentine, R. L. Fink, J. Araya-Pochet, and J. L. Erskine, Appl. Phys. Lett. A  49, 459 (1989). 5939 J. Appl. Phys. 70 (lo), 15 November 1991 0021-8979/91/105939-01$03.00 0 1991 American Institute of Physics 5939 Downloaded 04 Aug 2006 to 129.125.25.39. Redistribution subject to AIP license or copyright, see http://jap.aip.org/jap/copyright.jsp

Magnetic properties of ultrathin films of Ni/Cu(001) probed by soft-x-ray magnetic circular dichroism

https://pure.rug.nl/ws/files/98235178/1991JApplPhysTjeng.pdf

Magnetic properties of ultrathin films of Ni/Cu(001) probed by soft-x-ray magnetic circular dichroism

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