Confinement of phonons in InGaAs/InP superlattices
Bibliographic record
Abstract
A comparison is presented of optical mode Raman spectra of an In0.48Ga0.52As/InP superlattice, an In0.48Ga0.52As strained epilayer on InP, and bulk InP. The sharpness of the interfaces between the alloy and InP layers in the superlattice sample is confirmed through the observation of folded acoustic modes up to folding index m=6. Mixed interface modes were correspondingly not observed in the superlattice optic mode Raman spectra. The GaAs-like longitudinal optic (LO) and transverse optic and InP LO modes in the superlattice are found to decrease in frequency with respect to the corresponding strained-epilayer and bulk-InP modes. These frequency shifts arise from phonon confinement effects in the superlattice.
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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".