Spectral intensities and frequencies of spin waves in ferromagnetic cylinders: Application to nickel nanowires
Bibliographic record
Abstract
The theory for dipole-exchange spin waves in cylindrical ferromagnetic nanowires, as developed in a previous paper, is extended to include spectral intensities, arbitrary orientation of external magnetic field, and effects of single-ion anisotropy. This allows applications to be made to the nickel nanowires studied experimentally. The dependences of the spin-wave frequencies on the nanowire radius, wave vector, and magnetic field are investigated, and the spatial distribution of the eigenmodes are evaluated to analyze their localization. The spectral intensities are calculated within a Green's function formalism, giving a good insight into data from Brillouin light scattering. The spin-wave frequencies obtained in the case of zero field are compared to the experimental results for nickel, and to results deduced from macroscopic theory under conditions of small surface pinning. Also when the magnetic field is perpendicular to the wire axis, making the magnetization nonuniform, our results provide a good description of the experimental behavior.
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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".