›› 2015, Vol. 24 ›› Issue (2): 27301-027301.doi: 10.1088/1674-1056/24/2/027301
• CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES • 上一篇 下一篇
王品之a b, 朱素华b, 潘涛c, 吴银忠b c
Wang Pin-Zhi (王品之)a b, Zhu Su-Hua (朱素华)b, Pan Tao (潘涛)c, Wu Yin-Zhong (吴银忠)b c
摘要: The interface with a pinned dipole within the composite barrier in a ferroelectric tunnel junction (FTJ) with symmetric electrodes is investigated. Different from the detrimental effect of the interface between the electrode and barrier in previous studies, the existence of an interface between the dielectric SrTiO3 slab and ferroelectric BaTiO3 slab in FTJs will enhance the tunneling electroresistance (TER) effect. Specifically, the interface with a lower dielectric constant and larger polarization pointing to the ferroelectric slab favors the increase of TER ratio. Therefore, interface control of high performance FTJ can be achieved.
中图分类号: (Tunneling)