Ultra-high ferromagnetic resonance frequency in exchange-biased system

Publication: Research - peer-reviewJournal article – Annual report year: 2010

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  • Author: Phuoc, Nguyen Nguyen, Singapore

    Temasek Laboratories, National University of Singapore, Singapore

  • Author: Le, Thanh Hung

    Unknown

  • Author: Ong, C.K., Singapore

    Center for Superconducting and Magnetic Materials, Department of Physics, National University of Singapore, Singapore

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Static and dynamic magnetic properties of exchange-biased FeCo/MnIr multilayers were systematically investigated. A huge increased ferromagnetic resonance frequency up to 10GHz was observed in the case of thin MnIr layers being possibly interpreted as the contribution of the rotatable anisotropy. The rotatable anisotropy as well as the resonance frequency and frequency linewidth can be tuned by changing the thickness of MnIr layer. The correlation between the variation of rotatable anisotropy and enhancement of coercivity and magnetic damping is discussed.
Original languageEnglish
JournalJournal of Alloys and Compounds
Publication date2010
Volume506
Journal number2
Pages504-507
ISSN0925-8388
DOIs
StatePublished
CitationsWeb of Science® Times Cited: 4
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