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← ScienceWhich mechanism limits induced magnetization within nanoscale ferromagnetic particles?
A)Superparamagnetic blocking prevents stable alignment✓
B)Magnetostriction induces crystalline phase transition
C)Domain wall pinning minimizes magnetic flux
D)Eddy current losses hinder rapid switching
💡 Explanation
Superparamagnetic blocking limits magnetization because thermal energy causes random fluctuations, therefore the magnetic moments randomize above the blocking temperature, rather than aligning with an external field as in larger ferromagnetic materials.
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