论文标题
可逆性与不可逆的电压操纵PT/CO/CO/氧化物多层的界面磁各向异性
Reversible vs. irreversible voltage manipulation of interfacial magnetic anisotropy in Pt/Co/oxide multilayers
论文作者
论文摘要
PT/CO/MOX（MOX = MGOX，ALOX，TBOX）中CO/氧化物界面处的垂直磁各向异性使用10 nm Thick Zro2作为固体电解质进行了修饰。用氧离子向/远离CO/MOX界面的迁移来解释，界面磁各向异性的大型驱动驱动的修饰和效应的不易挥发性。虽然该效果在PT/CO/CO/ALOX和PT/CO/TBOX中是可逆的，其中CO层可以被氧化或降低，但在PT/CO/MGOX中，效果已被发现是不可逆的。我们建议这些差异可能与MOX层中离子传导的不同性质有关。
The perpendicular magnetic anisotropy at the Co/oxide interface in Pt/Co/MOx (MOx = MgOx, AlOx, TbOx) was modified by an electric field using a 10 nm-thick ZrO2 as a solid electrolyte. The large voltage-driven modification of interfacial magnetic anisotropy and the non-volatility of the effect is explained in terms of the migration of oxygen ions towards/away from the Co/MOx interface. While the effect is reversible in Pt/Co/AlOx and Pt/Co/TbOx, where the Co layer can be oxidised or reduced, in Pt/Co/MgOx the effect has been found to be irreversible. We propose that these differences may be related to the different nature of the ionic conduction within the MOx layers.
