Enhanced electromagnetic tunability of barium strontium titanate films via coating Pr modified yttrium iron garnet layer

被引：0
|
作者：
Jiao, Tejing [1 ]
You, Caiyin [1 ]
Tian, Na [1 ]
Duan, Zongfan [1 ]
Yan, Fuxue [1 ,2 ]
Ren, Pengrong [1 ]
Liu, Heguang [1 ]
机构：
[1] Xian Univ Technol, Sch Mat Sci & Engn, Xian 710048, Peoples R China
[2] Xian Univ Technol, Adv Mat Anal & Test Ctr, Xian 710048, Peoples R China
来源：
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY | 2024年 / 202卷
基金：
中国国家自然科学基金;
关键词：
YPrIG/BST thin film; Sol-gel method; Dielectric properties; Electromagnetic tunability; Figure of merit; THIN-FILMS; DIELECTRIC-PROPERTIES; ELECTRICAL-PROPERTIES; MAGNETODIELECTRIC PROPERTIES; FUNCTIONAL-PROPERTIES; TUNABLE PERFORMANCE; MICROSTRUCTURE; BA1-XSRXTIO3; BEHAVIOR; FERRITE;
D O I：
10.1016/j.jmst.2024.03.019
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
It is hard to simultaneously realize the high dielectric tunability and low loss for the single Ba 0.6 Sr 0.4 TiO 3 (BST) dielectric film made through chemical method. Garnet structured Y 2.80 Pr 0.20 Fe 5 O 12 (YPrIG) exhibits the merits of high saturation magnetization and a much high resistivity, which are helpful for realizing magnetoelectric double tuning and suppressing the dielectric loss of BST film. In this work, Y 2.80 Pr 0.20 Fe 5 O 12 /Ba 0.6 Sr 0.4 TiO 3 (YPrIG/BST) composite films were fabricated by sol-gel method. The composite films exhibited a low dielectric loss (0.0087), and got a magnetic tunability of 11.73% at 10 kOe and 1.44 MHz. Compared with BST film, the tunability of YPrIG/BST film was enhanced from 56.25% to 73.24% under the bias electric field of 800 kV/cm. Additionally, YPrIG/BST films exhibited an electromagnetic double adjustability. The electromagnetic tunability of YPrIG/BST composite films was as high as 80.40% at 1.44 MHz, under the DC bias electric field of 800 kV/cm and magnetic field of 10 kOe. This phenomenon can be explained in terms of the superposition effect of electric field and magnetic field. (c) 2024 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology.
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页码：174 / 182
页数：9
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