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Pinned interface dipole-induced tunneling electroresistance in ferroelectric tunnel junctions
Materials Science · Submitted 28 Sep 2014
abstract compiled · 2026-09-23 · no language-model review
The authors' main claim Tuneling electroresistance can be induced due to the nonswitchable interface dipole in FTJs with symmetric electrodes.
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The abstract, sentence by sentence
Based on the structure predicted in a ferroelectric tunnel junction in the resent density functional theory study, we investigate the electron transport through the FTJ with asymmetric interfaces, i.e., one interface dipole is pinned and the other interface dipole is switchable. Tuneling electroresistance 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.
background contribution method result interpretation main claim
| # | sentence | role | the authors' own work | states the main conclusion | strength |
|---|---|---|---|---|---|
| s0 | Based on the structure predicted in a ferroelectric tunnel junction in the resent density functional theory study, we investigate the electron transport through the FTJ with asymmetric interfaces, i.e., one interface dipole is pinned and the other interface dipole is switchable. | contribution 0.95 | 0.73 | 0.07 | asserted 0.84 |
| s1 | Tuneling electroresistance can be induced due to the nonswitchable interface dipole in FTJs with symmetric electrodes. | result 0.93 | 0.44 | 0.37 | asserted 0.94 |
| s2 | 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. | result 1.00 | 0.81 | 0.23 | asserted 1.00 |
| s3 | A large TER can be achieved when the pinned polarization points to the ferroelectric film and low interface dielectric constants. | result 0.99 | 0.84 | 0.41 | asserted 0.99 |
| s4 | In addition, effect of electrode on TER in the structure is also discussed. | contribution 0.96 | 0.65 | 0.03 | unclear 0.80 |
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The paper
Original abstract
Based on the structure predicted in a ferroelectric tunnel junction in the resent density functional theory study, we investigate the electron transport through the FTJ with asymmetric interfaces, i.e., one interface dipole is pinned and the other interface dipole is switchable. Tuneling electroresistance 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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