Ultrafast imaging of incoherent rotation magnetic switching with experimental and numerical micromagnetic dynamics
Bibliographic record
Abstract
The magnetic switching dynamics of a thin-film microstructured Permalloy element were directly observed undergoing incoherent rotation reversal processes. Experimental spatiotemporally and vectorially resolved micromagnetic data show qualitative agreement with numerically simulated micromagnetic data for the nonequilibrium states during reversal. The application of a longitudinal reversal field launches rotations in both clockwise and counterclockwise directions, governed by magnetostatic effects, at different locations within a shaped sample. Reversal proceeds by fast initial selection into these rotation directions, immediately leading to vortex formation throughout the sample, and is followed by slower expulsion of the vortices in the transverse-to-field direction through local coherent rotation. Apparent transient damping, magnetization vector length averages, and spatial frequency representations support energy transfer concepts for the reversal process.
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How this classification was reachedexpand
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 itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, 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".