Journal of Sol-Gel Science and Technology

, Volume 81, Issue 2, pp 327–332 | Cite as

Oriented arrays of iron nanowires: synthesis, structural and magnetic aspects

  • Anna S. Goncharova
  • Stepan V. Sotnichuk
  • Anna S. Semisalova
  • Tatiana Yu. Kiseleva
  • Ilya Sergueev
  • Marcus Herlitschke
  • Kirill S. Napolskii
  • Andrei A. Eliseev
Original Paper: Nano-structured materials (particles, fibers, colloids, composites, etc.)
  • 171 Downloads

Abstract

Iron nanowires with the diameter of ca. 40 nm and a length up to few dozens of microns are fabricated via templated electrodeposition using anodic aluminum oxide (AAO) film as porous matrix. Despite polycrystalline structure of wires the technique allows fabrication of dense deposits with micrometer-sized single crystalline grains within AAO templates and high chemical stability towards oxidation. Nanowire arrays exhibit strong magnetization anisotropy with saturation magnetization of 180 emu/g and coercive field of 815 Oe in direction parallel to the long axis of nanowires and 230 Oe in perpendicular direction. The effective hyperfine fields on iron atoms as extracted from Mossbauer and Nuclear Forward Scattering of sample in demagnetized state indicates slight deviation of magnetization vector (~ 6°) from nanowire long axis appearing probably due to curling of magnetic moments by antisymmetric exchange interactions at the surface of nanowires.

Graphical Abstract

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Keywords

Iron nanowires Templated electrodeposition Curling Mossbauer spectroscopy Nuclear Forward Scattering Antisymmetric exchange 

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Copyright information

© Springer Science+Business Media New York 2016

Authors and Affiliations

  • Anna S. Goncharova
    • 1
  • Stepan V. Sotnichuk
    • 1
  • Anna S. Semisalova
    • 2
  • Tatiana Yu. Kiseleva
    • 2
  • Ilya Sergueev
    • 3
  • Marcus Herlitschke
    • 3
  • Kirill S. Napolskii
    • 1
    • 4
  • Andrei A. Eliseev
    • 1
    • 4
  1. 1.Department of Materials ScienceM.V. Lomonosov Moscow State UniversityMoscowRussia
  2. 2.Department of PhysicsM.V. Lomonosov Moscow State UniversityMoscowRussia
  3. 3.Deutsches Elektronen-SynchrotronHamburgGermany
  4. 4.Department of ChemistryM.V. Lomonosov Moscow State UniversityMoscowRussia

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