Dynamic Scaling Behavior of Nucleation and Saturation Field during Magnetization Reversal of Co/Pt Multilayers

Djati Handoko, Duy Truong Quach, Sang Hyuk Lee, Kyung Min Lee, Jong Ryul Jeong, Dong Seok Yang, Dong Hyun Kim

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

We have discovered that there exist dynamic scaling behaviors for the nucleation and the saturation field in hysteresis loop of Co/Pt multilayer thin films. The dynamic hysteresis measurement was carried out with variation of sweeping rate of cycling fields, which reveals that not only the coercivity and the loop area, well known as the Steinmetz law, but also the nucleation and the saturation field exhibit similar scaling behaviors. We have systematically analyzed the scaling factor of nucleation, coercivity, and saturation phase with respect to the Co sublayer thickness. Local structural configuration depending on the Co sublayer thickness were examined by extended X-ray absorption fine structure, implying that damping parameter and interface effect modifies the coercivity and nucleation scaling factor but does not significantly induce the change in saturation scaling factors.

Original languageEnglish
Article number7283629
JournalIEEE Transactions on Magnetics
Volume52
Issue number2
DOIs
Publication statusPublished - 1 Feb 2016

Keywords

  • Damping parameter
  • Steinmetz law
  • scaling behavior

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