Organic multiferroic heterostructure is one of the most promising structures for the future design of high-density flexible energy-efficient data storage. Here, organic ferromagnetic metal(tetracyanoethylene) (M(TCNE))_x/ferroelectric poly(vinylidene fluoride-co-trifluoroethylene) (P(VDF-TrFE)) multiferroic heterostructures are fabricated, where the excited state in M(TCNE)_x interacted with localized dipole in P(VDF-TrFE) provides a key link for the interfacial coupling. Thus, aligned dipoles in P(VDF-TrFE) by external electric field can affect the magnetization of Fe(TCNE)_x effectively to result in a pronounced magnetization–voltage (M–V) hysteresis loop. Moreover, light-induced electron-hole pairs in Fe(TCNE)_x with long lifetime effectively interact with the dipoles in P(VDF-TrFE) to lead to an effect in external light control of electric polarization of P(VDF-TrFE). Overall, the organic multiferroic heterostructure provides the possibility of realizing two storage modes, light control of dipole as well as electric field control of spin, which can broaden multifunctional applications of organic multiferroic materials in the area of multistate storage.

中文翻译：

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M(TCNE)x/P(VDF-TrFE) 多铁异质结构中的光子-偶极子-自旋相互作用可用于多态数据存储的双峰控制

有机多铁异质结构是未来高密度灵活节能数据存储设计最有前途的结构之一。这里，制备了有机铁磁金属（四氰乙烯）（M（TCNE））_{x /铁电聚（偏二氟乙烯-三氟乙烯）（P（VDF-TrFE））多铁异质结构，其中M（TCNE） x}中的激发态相互作用P(VDF-TrFE) 中的局域偶极子为界面耦合提供了关键环节。因此，外部电场在 P(VDF-TrFE) 中排列的偶极子可以有效影响 Fe(TCNE) _x的磁化强度，从而产生明显的磁化电压 ( M – V ) 磁滞回线。此外，Fe(TCNE) _x中长寿命的光致电子空穴对与 P(VDF-TrFE) 中的偶极子有效相互作用，从而产生外部光控制 P(VDF-TrFE) 电极化的效果。总体而言，有机多铁异质结构提供了实现偶极子的光控制和自旋的电场控制两种存储模式的可能性，这可以拓宽有机多铁材料在多态存储领域的多功能应用。