无机材料学报2023，Vol.38Issue(3)：322-328,7.DOI:10.15541/jim20220353
顶部籽晶法生长大尺寸、高品质钇铁石榴石晶体
High Quality and Large Size Yttrium Iron Garnet Crystal Grown by Top Seeded Solution Growth Technique
摘要
Abstract
Yttrium iron garnet (Y3Fe5O12, YIG) crystals have been widely used in microwave and magneto-optic devices due to their excellent magnetic and magneto-optical properties. Currently, the commercial material is YIG single crystal thin films, which is deposited on Gd3Ga5O12 (GGG) substrate using liquid phase epitaxy technique. Herein, we report a new growth technology of YIG single crystal by top seeded solution growth (TSSG) technique from lead-free B2O3-BaF2 flux. The maximum size and weight of the as-grown YIG crystal can be up to 43 mm× 46 mm×11 mm and 60 g, respectively. The crystals exhibit excellent comprehensive performances with narrow ferromagnetic resonance linewidth (0.679 Oe, 1 Oe=250/π A/m), high transparency (75％) and Faraday rotation angle (200 (°)·cm–1@ 1310 nm and 160 (°)·cm–1@1550 nm), indicating a good candidate in microwave and magneto-optic devices. More significantly, this growth technique is ideally suited to large size YIG or doped-YIG single crystals ascombined with the oriented seed crystal and lifting process, which can significantly decrease the manufacture cost.关键词
钇铁石榴石/单晶/顶部籽晶法/铁磁共振线宽/磁光效应Key words
yttrium iron garnet/single crystal/TSSG method/ferromagnetic resonance linewidth/magneto-optic effect分类
化学化工引用本文复制引用
杨晓明,蓝江河,魏占涛,苏榕冰,李阳,王祖建,刘颖,何超,龙西法..顶部籽晶法生长大尺寸、高品质钇铁石榴石晶体[J].无机材料学报,2023,38(3):322-328,7.基金项目
National Natural Science Foundation of China(51902307,11974349,11904362,52172009,52102011) （51902307,11974349,11904362,52172009,52102011）
