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Magnetically Anisotropic Cobalt and Iron Nanofibers via Electrospinning
Author(s) -
Graeser M.,
Bognitzki M.,
Massa W.,
Pietzonka C.,
Greiner A.,
Wendorff J. H.
Publication year - 2007
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.200700849
Subject(s) - materials science , nanofiber , electrospinning , cobalt , anisotropy , ferromagnetism , hysteresis , polymer , thermal hysteresis , composite material , fiber , nanotechnology , metallurgy , condensed matter physics , optics , physics , phase transition
Magnetically anisotropic cobalt and iron nanofibers (see figure) are obtained via oriented polymer‐supported electrospinning and subsequent reduction and thermal treatment. The cobalt and iron nature of the fibers is confirmed by XRD analysis. Fibers of both metals show ferromagnetic behavior. Parallel aligned iron nanofibers revealed anisotropic hysteresis loops depending on field‐fiber orientation.