Effect of a Platinum Buffer Layer on the Magnetization Dynamics of Sputter Deposited YIG Polycrystalline Thin Films

Satya Prakash Pati, Muftah Al-Mahdawi, Yohei Shiokawa, Masashi Sahashi, Yasushi Endo

研究成果: Article査読

2 被引用数 (Scopus)

抄録

The present investigation deals with the effect of thickness and a platinum (Pt) buffer layer on the dynamic magnetic properties of polycrystalline yttrium iron garnet (YIG) films fabricated after post-annealing to recrystallize from the amorphous state. The dynamic magnetic properties of films without a buffer layer deteriorate as the thickness decreases as indicated by the increased line-widths in the ferromagnetic resonance spectra. On the other hand, a strong rejuvenation in the static and dynamic magnetic properties of the films is observed when a Pt buffer layer is used. The Pt buffer layer decreases the Gilbert damping parameter from 11.4 x10-4 and 3.5x10-4 for a 100 nm-thick YIG film. These observations mainly originate from controlling the microstructure or the surface morphology of the films.

本文言語English
論文番号7906600
ジャーナルIEEE Transactions on Magnetics
53
11
DOI
出版ステータスPublished - 2017 11

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

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