The bimodal distribution spin Seebeck effect enhancement in epitaxial Ni0.65Zn0.35Al0.8Fe1.2O4 thin film

Hua Wang, Dazhi Hou, Takashi Kikkawa, Rafael Ramos, Ka Shen, Zhiyong Qiu, Yao Chen, Maki Umeda, Yuki Shiomi, Xiaofeng Jin, Eiji Saitoh

研究成果: Article査読

6 被引用数 (Scopus)

抄録

The temperature dependence of the spin Seebeck effect (SSE) in epitaxial Ni0.65Zn0.35Al0.8Fe1.2O4 (NZA ferrite) thin film has been investigated systematically. The SSE at high fields shows a bimodal distribution enhancement from 3 K to 300 K and is well fitted with a double-peak Lorentzian function. We speculate the symmetric SSE enhancement in Pt/NZA ferrite bilayer, which is different from the magnon polarons induced asymmetric spikes in the SSE of Pt/YIG [T. Kikkawa et al. Phys. Rev. Lett. 117, 207203 (2016)], may result from the magnon-phonon interactions occurring at the intersections of the quantized magnon and phonon dispersions. The SSE results are helpful for the investigation of the magnon-phonon interaction in the magnetic ultrathin films.

本文言語English
論文番号142406
ジャーナルApplied Physics Letters
112
14
DOI
出版ステータスPublished - 2018 4 2

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

フィンガープリント 「The bimodal distribution spin Seebeck effect enhancement in epitaxial Ni<sub>0.65</sub>Zn<sub>0.35</sub>Al<sub>0.8</sub>Fe<sub>1.2</sub>O<sub>4</sub> thin film」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

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