Influence of interlayer magnetostatic coupling on the ferromagnetic resonance properties of lithographically patterned ferromagnetic trilayers

Y. Nozaki, K. Tateishi, S. Taharazako, S. Yoshimura, Kimihide Matsuyama

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

The influence of magnetostatic coupling in a Ni81 Fe19 Cu Ni81 Fe19 elliptical element on the ferromagnetic resonance (FMR) properties was experimentally and numerically investigated. Discontinuous variations in the FMR frequencies were observed when the relative orientation of magnetization was switched between parallel and antiparallel. Furthermore, the trilayer element exhibits field-insensitive FMR properties for magnetization of antiparallel orientation. This is attributable to the conflicted magnetic field dependence of the FMR frequency in the top and bottom Ni81 Fe19 layers with antiparallel magnetization.

Original languageEnglish
Article number161903
JournalApplied Physics Letters
Volume92
Issue number16
DOIs
Publication statusPublished - May 1 2008

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magnetostatics
ferromagnetic resonance
interlayers
magnetization
magnetic fields

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

Cite this

Influence of interlayer magnetostatic coupling on the ferromagnetic resonance properties of lithographically patterned ferromagnetic trilayers. / Nozaki, Y.; Tateishi, K.; Taharazako, S.; Yoshimura, S.; Matsuyama, Kimihide.

In: Applied Physics Letters, Vol. 92, No. 16, 161903, 01.05.2008.

Research output: Contribution to journalArticle

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AB - The influence of magnetostatic coupling in a Ni81 Fe19 Cu Ni81 Fe19 elliptical element on the ferromagnetic resonance (FMR) properties was experimentally and numerically investigated. Discontinuous variations in the FMR frequencies were observed when the relative orientation of magnetization was switched between parallel and antiparallel. Furthermore, the trilayer element exhibits field-insensitive FMR properties for magnetization of antiparallel orientation. This is attributable to the conflicted magnetic field dependence of the FMR frequency in the top and bottom Ni81 Fe19 layers with antiparallel magnetization.

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