Modeling the irreversible response within the ferromagnetic phase of La0.7Sr0.3MnO3
Bibliographic record
Abstract
The magnetic response of a ferromagnetically ordered perovskite La0.7Sr0.3MnO3 with a critical temperature TC=325 K has been measured as a function of applied field ha over the interval −4 kOe⩽ha⩽+4 kOe, and as a function of temperature T over the interval 5 K⩽T⩽350 K which spans the ordered phase, and analyzed within the framework of a model which reduces all magnetic systems to an ensemble of temperature dependent, asymmetric double well subsystems. The model is able to replicate the field and temperature dependence of the measured zero field cooled moment, the field cooled moment, the isothermal remanent moment, the thermoremanent moment, the initial magnetizing curve, the magnetizing remanence, the major hysteresis loop, and the demagnetizing remanence, and yields the spectrum of double well dissipation barriers and level splittings which represent the Barkhausen excitations between metastable domain configurations.
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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".