Sputter-prepared (001) BiFeO3 thin films with ferromagnetic L10-FePt(001) electrode on glass substrates

被引：23

作者：

Chang, Huang-Wei ^{[1
]}

Yuan, Fu-Te ^{[2
]}

Shih, Chih-Wei ^{[3
]}

Ku, Ching-Shun ^{[4
]}

Chen, Ping-Han ^{[1
]}

Wang, Chang-Ren ^{[1
]}

Chang, Wen-Cheng ^{[3
]}

Jen, Shien-Uang ^{[5
]}

Lee, Hsing-Yi ^{[4
]}

机构：

[1] Tunghai Univ, Dept Phys, Taichung 407, Taiwan

[2] Natl Taiwan Univ, Dept Phys, Taipei 106, Taiwan

[3] Natl Chung Cheng Univ, Dept Phys, Chiayi 621, Taiwan

[4] Natl Synchrotron Radiat Res Ctr, Hsinchu 300, Taiwan

[5] Acad Sinica, Inst Phys, Taipei 115, Taiwan

来源：

NANOSCALE RESEARCH LETTERS | 2012年 / 7卷

关键词：

Multiferroic BiFeO3 (001) films; L10-FePt(001) underlayer; Glass substrate;

D O I：

10.1186/1556-276X-7-435

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Highly textured BiFeO3(001) films were formed on L1(0)-FePt(001) bottom electrodes on glass substrates by sputtering at reduced temperature of 400A degrees C. Good electric polarization 2P (r) = 80 and 95 mu C/cm(2), comparable to that of the reported epitaxial films, and coercivity E (c) = 415 and 435 kV/cm are achieved in the samples with 20-nm- and 30-nm-thick electrodes. The BiFeO3(001) films show different degrees of compressive strain. The relation between the variations of strain and 2P (r) suggests that the enhancement of 2P (r) resulted from the strain-induced rotation of spontaneous polarization. The presented results open possibilities for the applications based on electric-magnetic interactions.

引用

页码：1 / 5

页数：5

共 24 条

[1] Two-dimensional mapping of triaxial strain fields in a multiferroic BiFeO3 thin film using scanning x-ray microdiffraction [J].