Static and Dynamic Magnetic Properties of Single‐Crystalline Yttrium Iron Garnet Films Epitaxially Grown on Three Garnet Substrates
Static and Dynamic Magnetic Properties of Single‐Crystalline Yttrium Iron Garnet Films Epitaxially Grown on Three Garnet Substrates
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DOI：
10.1002/aelm.201800106
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发表时间：
2018-07
影响因子：
6.2
通讯作者：
T. Yoshimoto;T. Goto;Kei Shimada;Bungo Iwamoto;Yuichi Nakamura;H. Uchida;C. Ross;M. Inoue
中科院分区：
文献类型：
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作者：
T. Yoshimoto;T. Goto;Kei Shimada;Bungo Iwamoto;Yuichi Nakamura;H. Uchida;C. Ross;M. Inoue
在GGG、稀土GGG和NGG衬底上生长了单晶YIG薄膜，并对其晶体结构、表面形貌、磁光性能、正向体积(Fv)模的自旋波谱和阻尼参数进行了表征。由于YIG具有较大的磁弹性各向异性贡献，在三种样品中表现出最小的面外有效各向异性场1080Oe，其阻尼参数为1.1×10−3。由磁各向异性计算了FV-Sw色散曲线，与实验数据吻合较好。
Single‐crystalline yttrium iron garnet (YIG) films are grown on gadolinium gallium garnet (GGG), rare‐earth‐substituted GGG, and neodymium gallium garnet (NGG) substrates, and their crystalline structures, surface morphologies, magnetic and magneto‐optical properties, spin wave (SW) spectra of the forward volume (FV) mode, and damping parameters are characterized. YIG grown on NGG shows the smallest out‐of‐plane effective anisotropy field of 1080 Oe among the three samples because of its larger magnetoelastic anisotropy contribution, and its damping parameter is 1.1 × 10−3. The FV SW dispersion curve is calculated from the magnetic anisotropy and it shows good agreement with experimental data.