Strong Faraday rotation in Ce and Bi comodified epitaxial iron garnet films: Valence control through strain engineering
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Bibliographic record
Abstract
The correlation between lattice-misfit strain and the valence change of cerium was investigated in cerium and bismuth comodified iron garnet epitaxial films. We demonstrated that the transition of the valence state from Ce4+ to Ce3+ is triggered by reducing the compressive lattice-misfit strain and that the increase in concentration of Ce3+ induces a red-shift of the optical bandgap as well as an enhancement of the Faraday rotation. An extraordinary Faraday rotation of 0.91 deg/μm at 1.55 μm was achieved in these films by maximizing the concentration of Ce3+ through strain engineering.
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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