Strain profiles and radii of semiconductor rolled‐up tubes made by a single material
Bibliographic record
Abstract
Abstract Single‐material rolled‐up microtubes provide an opportunity to study the processes of strain relaxation and defect formation near the interface of strained‐layer semiconductor heterostructures. We study theoretically tubes formed by a single strained Si layer grown beyond the critical thickness on a Ge substrate. The residual strain accumulated in the Si layer causes the layer to roll after it is released from the substrate by etching. Computer simulations are carried out using Keating's valence force field method, with uniform and non‐uniform residual (initial) strain profiles and different strained layer widths. We show that the radius of the tubes is affected by a combination of these two factors and thus by the total elastic deformation present before rolling, a larger total deformation resulting in a smaller tube radius. However, uniform and non‐uniform residual strain profiles can be easily distinguished by analyzing the final profiles of the azimuthal and the radial strain components.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| 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 source (direct Gemma or distilled Codex), 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".