Spin Pumping at the Magnetic Insulator (YIG)/Normal Metal (Au) Interfaces
Why is this work in the frame?
A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.
Full frame distilled prediction
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.
- Candidate categories
- Insufficient payload (model declined to judge)
- Consensus categories
- Insufficient payload (model declined to judge)
- Domain
- Candidate signal: noneConsensus signal: none
- Study design
- Candidate signal: Not applicableConsensus signal: none
- Genre
- Candidate signal: EmpiricalConsensus signal: Empirical
- Teacher disagreement score
- 0.517
- Threshold uncertainty score
- 1.000
- Validation status
machine_predicted_unvalidated·codex-gemma-dda1882f352a
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 | 0.001 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.003 | 0.001 |
Machine scores (provisional)
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
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.
- Teacher spread
- 0.230 · how far apart the two teachers sit on this one work
- Validation status
score_only:v0-immature-baseline· verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it
Abstract
Spin injection across the ferrimagnetic insulator (YIG)/normal metal (Au) interface was studied by ferromagnetic resonance. The spin mixing conductance was determined by comparing the Gilbert damping in bare YIG films with those covered by a $\mathrm{Au}/\mathrm{Fe}/\mathrm{Au}$ structure. The Fe layer in $\mathrm{Au}/\mathrm{Fe}/\mathrm{Au}$ acted as a spin sink as displayed by an increased Gilbert damping parameter $\ensuremath{\alpha}$ compared to that in the bare YIG. In particular, for the $9.0\text{ }\text{ }\mathrm{nm}\text{ }\text{ }\mathrm{YIG}/2.0\text{ }\text{ }\mathrm{nm}\text{ }\text{ }\mathrm{Au}/4.3\text{ }\text{ }\mathrm{nm}\text{ }\text{ }\mathrm{Fe}/6.1\text{ }\text{ }\mathrm{nm}\text{ }\text{ }\mathrm{Au}$ structure, the YIG and Fe films were coupled by an interlayer exchange coupling, and the exchange coupled YIG exhibited an increased Gilbert damping compared to the bare YIG. This relationship between static and dynamic coupling provides direct evidence for spin pumping. The transfer of spin momentum across the YIG interface is surprisingly efficient with the spin mixing conductance ${g}_{\ensuremath{\uparrow}\ensuremath{\downarrow}}\ensuremath{\simeq}1.2\ifmmode\times\else\texttimes\fi{}{10}^{14}\text{ }\text{ }{\mathrm{cm}}^{\ensuremath{-}2}$.
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.
The record
- Venue
- Physical Review Letters
- Topic
- Magnetic properties of thin films
- Field
- Physics and Astronomy
- Canadian institutions
- Simon Fraser University
- Funders
- National Institute of Standards and TechnologyNational Science Foundation
- Keywords
- Spin pumpingMaterials scienceYttrium iron garnetCondensed matter physicsFerrimagnetismFerromagnetic resonanceConductanceMetalFerromagnetismInsulator (electricity)Spin (aerodynamics)Coupling (piping)Spin polarizationSpin Hall effectMagnetizationMagnetic fieldOptoelectronicsPhysicsElectronComposite materialMetallurgy
- Has abstract in OpenAlex
- yes