• Title/Summary/Keyword: ferromagnetic nanowire

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Numerical Formula of Depinning Fields from Notches in Ferromagnetic Permalloy Nanowire

  • Kim, Kab-Jin;You, Chun-Yeol;Choe, Sug-Bong
    • Journal of Magnetics
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    • v.13 no.4
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    • pp.136-139
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    • 2008
  • A simplified equation of depinning fields from notches of ferromagnetic Permalloy nanowires is presented. The derived equation is given in the form of an explicit function of nanowire width and thickness, and notch depth and angle. The equation agrees with all micromagnetic simulation results to an accuracy of ${\pm}$ 0.5 mT.

Magnetic Properties of Carbon Chains Doped with 4d Transition Metals

  • Jang, Y.R.;Lee, J.I.
    • Journal of Magnetics
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    • v.13 no.1
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    • pp.7-10
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    • 2008
  • The structural and magnetic properties of functionalized carbon chains doped with 4d transition metals, such as Ru, Rh, and Pd, were investigated using the full-potential linearized augmented plane wave (FLAPW) method. The carbon nanowire doped with Ru exhibited a ferromagnetic ground state with a sizable magnetic moment, while those doped with Rh and Pd had nonmagnetic ground states. For the Ru-doped chain, the density of states at the Fermi level showed large spin polarization, which suggests that the doped nanowire could be used for spintronic applications.