摘要
利用基于密度泛函理论的第一性原理计算,研究了PVDF/Fe界面的磁晶各向异性能(MAE),发现PVDF的铁电极矩可以灵活地调控异质结的磁晶各向异性能。特别地,通过巧妙地设计界面结构产生界面磁电效应,铁电极化反转可以使铁磁金属Fe层的磁化易轴实现从面内到面外的90°翻转,为电场控制的磁存储器提供了一种新的替代方法。
Using first-principles calculations in the framework of density-functional theory?magnetocrystalline anisotropy energy(MAE)of the poly(vinylidene fluoride)(PVDF)/Fe interface was investigated in this paper.The results show that MAE of this heterostructure can be flexibly manipulated by the ferroelectric polarization of PVDF.Especially by delicately designing the interface structure9the ferroelectric polarization reversal can switch the easy axis of the Fe layer from in-plane to out-of-plane,due to the interface magnetoelectric effect.This study provides an alternative method for electric-field controlled magnetic data memory.
作者
王瑞琦
WANG Ruiqi(School of Electronic Engineering,Xi'an Aeronautical University,Xi'an 710077,China)
出处
《功能材料》
EI
CAS
CSCD
北大核心
2017年第8期217-220,共4页
Journal of Functional Materials
基金
国家自然科学基金资助项目(61640006)
关键词
电控磁性
磁晶各向异性能
PVDF
FE
第一性原理计算
ferroelectric control
magnetocrystalline anisotropy energy
PVDF
Fe
first-principles calculation
