Size-Dependent and Multi-Field Coupling Behavior of Layered Multiferroic Nanocomposites
Size-Dependent and Multi-Field Coupling Behavior of Layered Multiferroic Nanocomposites
复制标题
层状多铁纳米复合材料的尺寸依赖性和多场耦合行为
DOI:
10.3390/ma12020260
复制
发表时间:
2019-01
期刊:
影响因子:
3.4
通讯作者:
Wang Yongkun
中科院分区:
文献类型:
--
作者:
Shi Yang;Wang Yongkun
The prediction of magnetoelectric (ME) coupling in nano-scaled multiferroic composites is significant for nano-devices. In this paper, we propose a nonlinear multi-field coupling model for ME effect in layered multiferroic nanocomposites based on the surface stress model, strain gradient theory and nonlinear magneto-elastic-thermal coupling constitutive relation. With this novel model, the influence of external fields on strain gradient and flexoelectricity is discussed for the first time. Meanwhile, a comprehensive investigation on the influence of size-dependent parameters and multi-field conditions on ME performance is made. The numerical results show that ME coupling is remarkably size-dependent as the thickness of the composites reduces to nanoscale. Especially, the ME coefficient is enhanced by either surface effect or flexoelectricity. The strain gradient in composites at the nano-scale is significant and influenced by the external stimuli at different levels via the change in materials’ properties. More importantly, due to the nonlinear multi-field coupling behavior of ferromagnetic materials, appropriate compressive stress and temperature may improve the value of ME coefficient and reduce the required magnetic field. This paper provides a theoretical basis to analyze and evaluate multi-field coupling characteristics of nanostructure-based ME devices.
登录
查看更多内容
DOI:
10.1007/s10854-018-9576-0
发表时间:
2018-07
期刊:
Journal of Materials Science: Materials in Electronics
影响因子:
--
作者:
A. Aubert;V. Loyau;G. Chaplier;F. Mazaleyrat;M. LoBue
通讯作者:
A. Aubert;V. Loyau;G. Chaplier;F. Mazaleyrat;M. LoBue
影响因子:
1.3
作者:
Pikin, S. A.;Lyubutin, I. S.
通讯作者:
Lyubutin, I. S.
DOI:
10.3390/ma10101183
发表时间:
2017-10-16
期刊:
Materials (Basel, Switzerland)
影响因子:
--
作者:
Burdin DA;Ekonomov NA;Chashin DV;Fetisov LY;Fetisov YK;Shamonin M
通讯作者:
Shamonin M
影响因子:
6.3
作者:
Shi Yang
通讯作者:
Shi Yang
影响因子:
5.3
作者:
N. Sharma;R. Maranganti;P. Sharma
通讯作者:
N. Sharma;R. Maranganti;P. Sharma