Parametric excitation of spin waves in bismuth-substituted yttrium iron garnet films using the first-order Suhl instability
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Bibliographic record
Abstract
The first-order Suhl instability in a bismuth-substituted yttrium iron garnet (Bi-YIG) film is parametrically driven at the difference frequency of two microwave oscillators. Our results show that the onset of the instability occurs at lower threshold power when excited parametrically, and the power of the instability can be fed into other spin wave modes. Other nonlinear processes are also enhanced using parametric excitation.
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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 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.001 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
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