Electric and Magnetic Properties of Bilayered Lead‐Free Piezoelectric and Multiferroic <scp> <scp>Bi</scp> </scp> <sub>0.9</sub> <scp> <scp>Dy</scp> </scp> <sub>0.1</sub> <scp> <scp>FeO</scp> </scp> <sub>3</sub> / <scp> <scp>K</scp> </scp> <sub>0.5</sub> <scp> <scp>Na</scp> </scp> <sub>0.5</sub> <scp> <scp>NbO</scp> </scp> <sub>3</sub> Thin Films
Bibliographic record
Abstract
Composite lead‐free piezoelectric and multiferroic thin films consisting of Bi 0.9 Dy 0.1 FeO 3 ( BDF ) and K 0.5 Na 0.5 NbO 3 ( KNN ) nanolayers were prepared on the Pt / TiO 2 / SiO 2 / Si substrates by pulsed laser deposition. The bilayered BDF / KNN films exhibited a preferential (100)‐orientation and much enhanced ferroelectric properties (2 P r = 26.5 μC/cm 2 , 2 E c = 369.2 kV/cm) as compared to those of single layer BDF or KNN thin film. In addition, the bilayered BDF / KNN films also showed ferromagnetic behavior at low temperature (2 M r = 1.57 emu/cm 3 , 2 H c = 3 kOe). The enhanced ferroelectric properties of the bilayered BDF / KNN thin films were attributed to the significantly reduced leakage current arising from the enhanced crystallinity and the interface reaction of the BDF and KNN nanolayers. An effective piezoelectric coefficient d 33 of 12 pm/V was measured on the bilayered films.
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.030 | 0.121 |
| Meta-epidemiology (narrow) | 0.025 | 0.024 |
| Meta-epidemiology (broad) | 0.028 | 0.017 |
| Bibliometrics | 0.013 | 0.030 |
| Science and technology studies | 0.014 | 0.018 |
| Scholarly communication | 0.013 | 0.015 |
| Open science | 0.027 | 0.015 |
| Research integrity | 0.016 | 0.028 |
| Insufficient payload (model declined to judge) | 0.000 | 0.005 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; both teacher heads agree on what is shown here.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".