Domain dynamics in Co/Pt/Co/Pt/Co/IrMn

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Domain dynamics in Co/Pt/Co/Pt/Co/IrMn

• M. Czapkiewicz

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New domain nucleationN(t)N0(1-exp(-Rt))Fatuzz
o cylindric domains nucleation and growth
B(t)exp(-2k2(1-(1 -(Rt1/k) 0.5(Rt1/k)2
e-Rt(1-1/k) 0.5k2(1-Rt)))where kv/Rr,v i R
increase with z H, k?const RR0exp-(WN-2HMSVN)
/kBT vv0exp-(WP-2HMSVP)/kBT
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k real time
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k reduced time
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(No Transcript)
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26 backward
26 forward
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26 backward
26 forward
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26 real time
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31 forward without dead time correction
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31 forward dead time correction
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31 forward fit after dead time correction
Kerr video for H21.1mT v10mm/s
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31 forward before dead time correction
impossible to fit
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31 backward fit after dead time correction
Kerr video for H7.8mT v50mm/s