Slow relaxation and magnetic hysteresis
Single-Molecule Magnets
Quizzed article REF: RE277 V1
Slow relaxation and magnetic hysteresis
Single-Molecule Magnets

Author : Kevin BERNOT

Publication date: April 10, 2019, Review date: October 1, 2020 | Lire en français

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5. Slow relaxation and magnetic hysteresis

For a superparamagnet, the mean time between two reversals of magnetization of the particle is equal to :

τ=τ0exp(KV/kBT)( 2 )

with :

τ 0
 : 
characteristic spin reversal time (τ 0 = 10 –12 to 10 –6 ...
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