Muon spin relaxation study of exchange biased Co/CoO
Bibliographic record
Abstract
The local magnetic properties of an exchange biased Co/CoO nanoparticle system have been examined using zero-field muon spin relaxation (ZF-\ensuremath{\mu}SR) spectroscopy. A direct measure of magnetic domains experiencing the exchange coupling due to the ferromagnetic core and antiferromagnetic shell of the Co nanoparticles is given by the observation of an oscillating signal in the field-cooled ZF-\ensuremath{\mu}SR spectra that is a clear and unambiguous signature of static magnetic correlations. Excellent agreement between the local field determined from the \ensuremath{\mu}SR oscillation and the bulk exchange bias loop shift confirms this interpretation. Furthermore, the unique line shape and increase in moment fluctuation rate on cooling the exchange biased sample are strong indications that spin-density-wave-like behavior is associated with setting the exchange bias in this system. This static field oscillation is likely due to the twisted moment directions at the interface.
Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.
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) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| 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) | 0.003 | 0.001 |
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".