Nanocrystalline Ni


Nanocrystalline Ni was produced by pulsed electrodeposition (PED). Measuring the Larmor frequency wL, the magnetic hyperfine field at the site of the 111Cd probe nuclei is determined. In this way, the local magnetic properties of nano-Ni are investigated.
 
 
  • Two magnetic components observed in nano-Ni:

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    wL0:    agrees exactly with poly-Ni
    wL1:    shifted to a lower frequency 

     
     
     

    The Larmor frequency wL0 known from polycrystalline Ni is measured in the centre of the crystallites, the frequency wL1 is attributed to the magnetic boundary of the crystallites. The width of the magnetic boundary is determined to about 3 nm.