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Advanced Materials

Anomalous Temperature Dependence of Magnetic Anisotropy in Gradient-Composition Sputterred Thin Films

Authors

  • Nguyen N. Phuoc,

    Corresponding author
    1. Temasek Laboratories, National University of Singapore, 5A Engineering Drive 2, Singapore 117411, Singapore
    • Temasek Laboratories, National University of Singapore, 5A Engineering Drive 2, Singapore 117411, Singapore.
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  • C. K. Ong

    1. Center for Superconducting and Magnetic Materials, Department of Physics, National University of Singapore, 2 Science Drive3, Singapore 117542, Singapore
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Abstract

An abnormal behavior of increasing magnetic anisotropy with temperature in magnetic thin films fabricated by a gradient-composition sputtering technique is observed and consistently confirmed by two independent measurements of static magnetic hysteresis loops and dynamic magnetic permeability spectra. This peculiar behavior is suggested to be due to the physical origin of stress-induced magnetic anisotropy.

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