Pinned interface dipole-induced tunneling electroresistance in ferroelectric tunnel junctions: A theoretical investigation
Pinned interface dipole-induced tunneling electroresistance in ferroelectric tunnel junctions: A theoretical investigation
复制标题
铁电隧道结中固定界面偶极子引起的隧道电阻:理论研究
DOI:
10.1063/1.4749267
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发表时间:
2012-09
影响因子:
3.2
通讯作者:
Wu, Y.Z.
中科院分区:
文献类型:
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作者:
Wu, Y.Z.
Based on the structure predicted in a ferroelectric tunnel junction (FTJ) in the resent density functional theory study [Liu et al., Phys. Rev. B 85, 125407 (2012)], we provide numerical simulations of the electron transport through the FTJ with asymmetric interfaces, i.e., one interface dipole is pinned and the other interface dipole is switchable. Tunneling electroresistance (TER) can be induced due to the nonswitchable interface dipole in FTJs with symmetric electrodes. Compared with the dependence relationship between TER and the polarization of switchable interface, TER is not sensitive to the variation of the polarization of pinned interface. A large TER can be achieved when the pinned polarization points to the ferroelectric film and low interface dielectric constants. In addition, effect of electrode on TER in the structure is also discussed.
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影响因子:
3.5
作者:
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通讯作者:
C. Duke;J. Lambe
影响因子:
3.7
作者:
M. Zhuravlev;S. Maekawa;E. Tsymbal
通讯作者:
M. Zhuravlev;S. Maekawa;E. Tsymbal
影响因子:
4
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通讯作者:
A. Crassous;V. Garcia;K. Bouzehouane;S. Fusil;A. Vlooswijk;G. Rispens;B. Noheda;M. Bibes;A. Barthé
影响因子:
3.7
作者:
Xiaohui Liu;Yong Wang;P. Lukashev;J. Burton;E. Tsymbal
通讯作者:
Xiaohui Liu;Yong Wang;P. Lukashev;J. Burton;E. Tsymbal
DOI:
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发表时间:
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期刊:
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影响因子:
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