Combined Effects of Impurity and Thickness on the Conduction Electron Spin Resonance Linewidth in Silver

  • Nishida Akihiko
    Department of Applied Physics, Faculty of Science, Fukuoka University
  • Horai Kazumi
    Department of Applied Physics, Faculty of Science, Fukuoka University

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  • Combined Effects of Impurity and Thickn

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The conduction electron spin resonance of silver foils doped with 10 ppm Au has been measured by the transmission method over the thickness range 5–66 μm in the temperature range between 18 K and 44 K at 22.7 GHz as functions of thickness and temperature. As a result of doping silver with Au, the spin-orbit parameter dominating the phonon-induced spin relaxation has not been changed significantly. On the other hand, the surface spin scattering probability ε has increased from 6×10−4 to 2×10−3. This increase with Au impurities has been attributed to the impurity-induced disorder of the silver surface.

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