Nonlinear power dependence of ferromagnetic resonance in NiFe/Pt/CoFeB trilayer

Minoru Yafuso, Keishi Miyazaki, Yusei Takayama, Sora Obinata, Takashi Kimura

Research output: Contribution to journalArticlepeer-review


The static and dynamic magnetization properties for a NiFe/Pt/CoFeB tri-layered film have been investigated. We find that the two ferromagnetic layers separated by a Pt spacer are ferromagnetically coupled even at room temperature. Moreover, the damping constant for the NiFe layer is found to show the significant enhancement with non-linear power dependence. These unique magnetic features observed in the NiFe layer can be understood by the weak ferromagnetism induced in the Pt spacer between two ferromagnetic layers.

Original languageEnglish
Article numberA27
JournalJournal of Physics Condensed Matter
Issue number4
Publication statusPublished - Jan 26 2022

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics


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