Behaviour of MNPs under pulsed-DC MF

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Superparamagnetic nanoparticles exhibit different behaviors under pulsed magnetic fields compared to sinusoidal alternating magnetic fields. A pulsed field can be analyzed as a combination of sinusoidal fields at various frequencies, allowing for a comprehensive understanding of their response. If the response to all sinusoidal frequencies is known, it can predict the behavior under a square wave or other waveforms, assuming linearity. This analysis is crucial for applications in magnetic field manipulation and nanoparticle behavior. Understanding these dynamics can enhance the development of technologies utilizing superparamagnetic nanoparticles.
TESL@
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Hello,

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.
 
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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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