四方晶系
铁磁共振
磁晶各向异性
凝聚态物理
外延
各向异性
材料科学
结晶学
反向
正交晶系
物理
磁各向异性
晶体结构
磁化
化学
纳米技术
几何学
光学
量子力学
数学
磁场
图层(电子)
作者
Hailong Wang,Chunhui Du,P. C. Hammel,Fengyuan Yang
出处
期刊:Physical Review B
[American Physical Society]
日期:2014-04-07
卷期号:89 (13)
被引量:101
标识
DOI:10.1103/physrevb.89.134404
摘要
We demonstrate strain tuning of magnetocrystalline anisotropy over a range of more than 1000 G in epitaxial ${Y}_{3}{\mathrm{Fe}}_{5}{\mathrm{O}}_{12}$ films of excellent crystalline quality grown on lattice-mismatched Y${}_{3}$Al${}_{5}{\mathrm{O}}_{12}$ substrates. Ferromagnetic resonance (FMR) measurements reveal a linear dependence of both out-of-plane and in-plane uniaxial anisotropy on the strain-induced tetragonal distortion of ${Y}_{3}{\mathrm{Fe}}_{5}{\mathrm{O}}_{12}$. Importantly, we find the spin mixing conductance ${G}_{r}$ determined from inverse spin Hall effect and FMR linewidth broadening remains large: ${G}_{r}$ = 3.33 \ifmmode\times\else\texttimes\fi{} 10${}^{14}$ \ensuremath{\Omega}${}^{\ensuremath{-}1}$ m${}^{\ensuremath{-}2}$ in Pt/${Y}_{3}{\mathrm{Fe}}_{5}{\mathrm{O}}_{12}$/Y${}_{3}$Al${}_{5}{\mathrm{O}}_{12}$ heterostructures, quite comparable to the value found in Pt/${Y}_{3}{\mathrm{Fe}}_{5}{\mathrm{O}}_{12}$ grown on lattice-matched Gd${}_{3}$Ga${}_{5}{\mathrm{O}}_{12}$ substrates.
科研通智能强力驱动
Strongly Powered by AbleSci AI