Structural Stability of Antiferroelectric Pb(Mg<sub>1/2</sub>W<sub>1/2</sub>)O<sub>3</sub>-Based Complex Perovskite Solid Solutions
Why this work is in the frame
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Bibliographic record
Abstract
Complex perovskite Pb(Mg1/2W1/2)O3 (PMW) is known to exhibit antiferroelectric behavior. In this work, two new solid solutions of (1-x)Pb(Mg1/2W1/2)O3-xPb(B′1/2W1/2)O3 (B’ = Zn2+ or Mn2+) of perovskite structure have been prepared by solid state reaction method. X-ray diffraction analysis indicates that when x ≤ 0.2, both systems crystallize in an orthorhombic (Pmcn) structure. As x increases, the perovskite structure becomes less stable and secondary phases start to form. Our results show that isovalent substitutions of Zn2+ and Mn2+ for Mg2+ at high concentration resulted in different secondary phases. The structural stability of the perovskite phase and its influence on crystal symmetry are discussed.
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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 | 0.003 | 0.002 |
| Meta-epidemiology (narrow) | 0.002 | 0.002 |
| Meta-epidemiology (broad) | 0.003 | 0.001 |
| Bibliometrics | 0.002 | 0.007 |
| Science and technology studies | 0.002 | 0.001 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.002 | 0.000 |
| Research integrity | 0.001 | 0.002 |
| Insufficient payload (model declined to judge) | 0.001 | 0.001 |
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 it