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Behaviour of MNPs under pulsed-DC MF

  1. Jan 22, 2015 #1

    I'd like to ask how a superparamagnetic nanoparticle behaves under pulsed magnetic field (i.e. positive square wave) different than under a sinusodial AC MF. I have an idea but I need your information/opinions.

    Thank you.
  2. jcsd
  3. Jan 22, 2015 #2


    Staff: Mentor

    A pulsed field can be simply considered as a sum of sinusoidal fields at different frequencies. If you know the response at all the sinusoidal frequencies (and assuming no non-linearities) then you know the response to the square wave or any other waveform.
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