Dipole-exchange spin waves in rectangular antiferromagnetic nanowires
Bibliographic record
Abstract
A microscopic theory is developed for the dipole-exchange spin waves in long antiferromagnetic nanowires, either singly or in a rectangular array of size M×N, where M and N are arbitrary integers (typically chosen to be less than about 20). The model includes exchange interactions (both intrawire and interwire), the long-range dipole–dipole interactions, single-ion anisotropy (which stabilizes the antiferromagnetic ordering) and a longitudinal applied magnetic field. The spectrum of discrete coupled spin waves is calculated using a method similar to that employed recently to find the dipole-exchange spin waves in ultrathin antiferromagnetic films, and the spin-flop phase transition in some of these cases is also studied. It is found that the spin-wave frequencies are shifted as a result of the dipolar terms and that the transition field to the spin-flop phase is typically reduced in magnitude compared to its value in the exchange limit. The results are illustrated with numerical examples.
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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) | 0.001 | 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 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".