Spin wave propagation in ultrathin magnetic insulators with perpendicular magnetic anisotropy

被引：27
|
作者：
Chen, Jilei [1 ]
Wang, Chuangtang [2 ,3 ,4 ]
Liu, Chuanpu [1 ]
Tu, Sa [1 ]
Bi, Lei [2 ,3 ,4 ]
Yu, Haiming [1 ]
机构：
[1] Beihang Univ, Sch Microelect, BDBC, Fert Beijing Inst, Beijing 100191, Peoples R China
[2] UESTC, Natl Engn Res Ctr Electromagnet Radiat Control Ma, Chengdu 610054, Sichuan, Peoples R China
[3] UESTC, State Key Lab Elect Thin Films & Integrated Devic, Chengdu 610054, Sichuan, Peoples R China
[4] UESTC, Minist Educ, Key Lab Multispectral Absorbing Mat & Struct, Chengdu 610054, Sichuan, Peoples R China
来源：
APPLIED PHYSICS LETTERS | 2019年 / 114卷 / 21期
基金：
中国国家自然科学基金;
关键词：
Spin waves;
D O I：
10.1063/1.5093265
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Magnetic thin films with perpendicular magnetic anisotropy (PMA) offer opportunities for studying magnetostatic forward volume mode (MSFVM) spin waves with isotropic propagation. Here, we realize the full reciprocal MSFVM spin wave propagation in a 30-nm-thick manganese doped yttrium iron garnet (YIG) with PMA by only applying an external field of 5mT. The external magnetic field required for investigating the MSFVM spin waves in YIG is reduced by 34 times compared to the in-plane magnetized one. The spin wave group velocity and decay length are also investigated. Our finding paves the way for applications of isotropic magnonic computing systems and logic devices.
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收藏
页数：4
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