Landau-Khalatnikov simulation for magnetoelectric coupling in CoFe2O4-BaTiO3 composites

被引：3
|
作者：
Choi, H. -I. [1 ,2 ]
Lee, M. H. [1 ]
Kim, D. J. [1 ]
Kim, W. -J. [2 ,3 ]
Song, T. K. [1 ,2 ,4 ]
Choi, K. S. [5 ]
机构：
[1] Changwon Natl Univ, Sch Mat Sci & Engn, Chang Won 51140, Gyeongnam, South Korea
[2] Changwon Natl Univ, Dept Adv & Nano Mat, Chang Won 51140, Gyeongnam, South Korea
[3] Changwon Natl Univ, Dept Phys, Chang Won 51140, Gyeongnam, South Korea
[4] Changwon Natl Univ, Dept Mat Convergence & Syst Engn, Chang Won 51140, Gyeongnam, South Korea
[5] Sunchon Natl Univ, Dept Phys Educ, Sunchon 57922, Jeonnam, South Korea
来源：
CURRENT APPLIED PHYSICS | 2021年 / 23卷
关键词：
Magnetoelectric coupling; Landau-khalatnikov simulation; CoFe2O4-BaTiO3;
D O I：
10.1016/j.cap.2020.12.008
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The Landau-Khalatnikov (LK) simulation was used to study magnetoelectric (ME) coupling phenomena in a composite system of magneto-strictive CoFe2O4 (CF) and piezoelectric BaTiO3 (BT) materials, CF-BT. By adding ME coupling term with coupling parameter gamma, between polarization, P and magnetization, M of gamma(PM2)-M-2 in thermodynamic free energy density functional for LK simulation, the hysteretic ME coupling coefficients, alpha(ME)(H) in CF-BT composite systems were well simulated and small changes of magnetic-field (H) dependent polarization, P(H) were calculated. The maximum values of alpha(ME) are proportional to gamma in the broad ranges of more than 7 orders of magnitude.
引用
收藏
页码：15 / 18
页数：4
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