Enhanced magnetization and polarization in chemically modified multiferroic (1−x)BiFeO3–xDyFeO3 solid solution
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Bibliographic record
Abstract
In order to develop multiferroics with large magnetization and polarization, we have prepared the (1−x)BiFeO3–xDyFeO3 (BF-DF) solid solution and systematically studied its properties. A morphotropic phase transition from rhombohedral perovskite (R3c) to orthorhombic orthoferrite (Pbnm) was found at x around 0.1. The magnetic properties of BiFeO3 were improved by the introduction of Dy3+ on the perovskite A site. Chemically modified Bi0.9Dy0.1Fe1−xTixO3+x/2 ceramics by aliovalent ionic substitution of Ti4+ for Fe3+ with excess Bi2O3 exhibit weak ferromagnetism and a typical ferroelectric hysteresis loop with a large remnant polarization of 23 μC/cm2 at room temperature and a large saturated magnetization (Ms=0.5 μB/f.u.) at 2 K. These properties entitle the BF-DF solid solution one of few multiferroic materials that exhibit both decent magnetization and electric polarization.
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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 | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
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