Surface spin wave in canted antiferromagnets
Bibliographic record
Abstract
A theory is presented for the study of surface spin waves in a two-sublattice, uniaxial antiferromagnet when there is an external magnetic field applied perpendicular to the easy axis of the material to induce a canting of the spins. Our theoretical model uses a microscopic canted Heisenberg magnetic Hamiltonian, treated within the RPA (random phase approximation) approach. Numerical results show, from the stability condition, that the convergence to the infinite-bulk canting angle θ can be over several layers (for MnF2) or almost localized in the surface layer (for FeF2 and CoF2). The bulk mode for the uniaxial case (θ=0) becomes split into two well-defined bulk regions in the spectrum for the canted materials. It is found that, between these branches, there is an acoustic surface magnon branch.
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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) | 0.002 | 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".