So that film ybig / ggg was grown in proper temperature , then film ybilg was grown onto ybig / ggg . to improve the magneto - optical properties of films , film ybig was grown onto substrate ybilg which was sliced from garnet ybilg and polished . the tests of magneto - optical properties of the grown thin films showed that through combining two types of rare - earth ion garnet films with opposite signs of farady rotation temperature coefficients , high faraday temperature stability was reached due to temperature compensation effect , which indicated of great potential for application 反復實驗結果表明, ybiig薄膜的最佳外延溫度區(qū)間比ybig薄膜的低約10以上,因此,根據(jù)實驗結果選擇合適的溫度,我們先在ggg上外延生長ybig薄膜,然后在ybig上再外延ybiig薄膜,成功制成了ybiig ybig ggg復合膜結構;為了進一步提高性能,我們還將以前生長的ybiig單晶定向切割制為基底,在其上進行復合外延。