Nano Express

Nanoscale Research Letters

, 5:1111

First online:

Open Access This content is freely available online to anyone, anywhere at any time.

Effect of Crystallographic Texture on Magnetic Characteristics of Cobalt Nanowires

  • K MaazAffiliated withPhysics Division, PINSTECH Email author 
  • , S KarimAffiliated withPhysics Division, PINSTECH
  • , M UsmanAffiliated withDepartment of Physics, Quaid-i-Azam University
  • , A MumtazAffiliated withDepartment of Physics, Quaid-i-Azam University
  • , J LiuAffiliated withInstitute of Modern Physics, Chinese Academy of Sciences
  • , JL DuanAffiliated withInstitute of Modern Physics, Chinese Academy of Sciences
  • , M MaqboolAffiliated withDepartment of Physics and Astronomy, Ball State University


Cobalt nanowires with controlled diameters have been synthesized using electrochemical deposition in etched ion-track polycarbonate membranes. Structural characterization of these nanowires with diameter 70, 90, 120 nm and length 30 μm was performed by scanning electron microscopy, high-resolution transmission electron microscopy, and X-ray diffraction techniques. The as-prepared wires show uniform diameter along the whole length and X-ray diffraction analysis reveals that [002] texture of these wires become more pronounced as diameter is reduced. Magnetic characterization of the nanowires shows a clear difference of squareness and coercivity between parallel and perpendicular orientations of the wires with respect to the applied field direction. In case of parallel applied field, the coercivity has been found to be decreasing with increasing diameter of the wires while in perpendicular case; the coercivity observes lower values for larger diameter. The results are explained by taking into account the magnetocrystalline and shape anisotropies with respect to the applied field and domain transformation mechanism when single domain limit is surpassed.


Co nanowires Electrodeposition Magnetic properties