Magnetic and ferroelectric properties of Fe doped SrTiO<sub>3-δ</sub>films
Bibliographic record
Abstract
Recent interest in SrTiO 3 stems from its wide applicability in microwave devices based on the tunable characteristics of dielectric constant in the microwave frequency range. It is obvious that for any such application, SrTiO 3 should have a ferroelectric Curie temperature (T C ) close to room temperature or higher. By inducing strains by chemical substitutions, it was possible to obtain T C as high as 200°C in SrTiO 3 modified with Fe 4+ . Hysteresis loops obtained confirms the presence of ferroelectric domains. Two apparent transitions, one at ~200 °C and another ~300 °C were seen in ', which are replicated as sharp drops in resistivity curves. These temperatures far exceed the T C s reported in the literature till now and could open new avenues for innumerable other applications for SrTiO 3 . The magnetic properties of Fe doped SrTiO 3 are also investigated. Low doping of Fe exhibits simple antiferromagnetic behaviour.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| 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) | 0.001 | 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 itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
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".