The first stage of stress relaxation in tensile strained In1-xGaxAs1-yPy films
Bibliographic record
Abstract
Abstract The first stages of stress relaxation have been studied in a series of 2% tensile strained (In, Ga)(As, P) films of various compositions by transmission electron microscopy. Ternary In1-x Ga x As and In1-x Ga x P films relaxed by a combination of twinning and cracking, while the quaternary In1-x Ga x As1-y P y film relaxed only by twinning. The differences between the behaviours of the ternary and quaternary systems were correlated with the surface topography of the films. The surface nucleation of 90° partial dislocations was shown to be feasible at the growth temperature of the films (480°C) in the presence of surface roughness but, in the absence of a critical roughness, cracking was the preferred mechanism for coherency loss. The critical film thicknesses observed for stress relaxation by either twinning or cracking were shown to be in good agreement with the calculated values. The twins themselves often terminated inside the substrate (InP) rather than at the substrate-film interface. This behaviour was related to the elastic mismatch that exits between the harder film and softer substrate.
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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) | 0.001 | 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".