Spin-torque oscillator using a perpendicular polarizer with double free layers

Soo Man Seo, Kyung Jin Lee

    Research output: Contribution to journalArticlepeer-review

    Abstract

    We conducted a micromagnetic modeling study to investigate the spin torque oscillator (STO) using a perpendicular polarizer. We used an additional layer of negative anisotropy constant materials (NAM) on a conventional STO. For the NAM layer, the magnetic easy plane is parallel to the in-plane easy axis of the free layer, and inhibits the development of the out-of-plane component of the magnetization in the free layer. As a result, this new type of STO provides a high frequency limit up to 50 GHz.

    Original languageEnglish
    Pages (from-to)153-156
    Number of pages4
    JournalJournal of Magnetics
    Volume13
    Issue number4
    DOIs
    Publication statusPublished - 2008

    Keywords

    • Anisotropy
    • Negative anisotropy
    • Spin torque oscillator
    • Spin transfer torque

    ASJC Scopus subject areas

    • Electronic, Optical and Magnetic Materials
    • Condensed Matter Physics
    • Electrical and Electronic Engineering

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