Thin film Ni-Si solid-state reactions: Phase formation sequence on amorphized Si
Bibliographic record
Abstract
The phase formation sequence during the thermally induced solid-state reaction of a 10-nm-thick magnetron-sputtered Ni film with a Si(001) substrate amorphized by ion implantation (a-Si) is investigated using a combination of in situ temperature-resolved x-ray diffraction and ex situ x-ray pole figure analyses, transmission electron microscopy, and Rutherford backscattering spectrometry. Our results reveal (1) that the metastable θ-phase grows from δ-Ni2Si and directly transforms into NiSi and (2) that cleaving the as-prepared, amorphized samples are often subject to a spontaneous reaction possibly resulting from cleaving. In the spontaneously reacted samples, a mixture of θ and NiSi is observed from the beginning of the thermal treatment. The θ phase exhibits a (110) fiber texture with a ±10° misorientation, which is then inherited by NiSi. The rest of the phase sequence is the same as for nonreacted samples, the NiSi2 growing from 390 °C if the amorphized Si is not completely consumed.
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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 | 0.001 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.001 | 0.001 |
| Scholarly communication | 0.000 | 0.001 |
| 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".