Effects of nanoscale Ni, Al, and Ni–Al interlayers on nucleation and growth of diamond on Si
Bibliographic record
Abstract
Diamond nucleation experiments on Si wafers, precoated with Ni, Al, and Ni–Al duplex intermediate layers, have been conducted in a microwave plasma enhanced chemical vapor deposition reactor. The diamond nucleation density is dependent on the thickness of the single Ni interlayer and also the ratio of Ni/Al. The diamond nucleation density increases with the Ni thickness up to approximately 100 nm. Above 100 nm, decrease in the nucleation density is observed. The nondiamond carbon concentration increases when the Ni thickness increases from 40 to 200 nm, along with a simultaneous increase of nondiamond carbon accumulation on the Si substrate surface. The diamond grown on Si with an Al interlayer is of high purity but of low nucleation density. For the Ni–Al duplex interlayer, increase of Al fraction enhances both the purity and nucleation density of diamond, and markedly reduces the formation of nondiamond carbon on the Si substrate surfaces.
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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 | 0.003 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.001 | 0.000 |
| Science and technology studies | 0.000 | 0.003 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 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".