Coalescence kinetics of copper clusters on highly oriented pyrolytic graphite and Dow Cyclotene, as determined by x-ray photoelectron spectroscopy
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Bibliographic record
Abstract
Copper clusters, deposited by evaporation onto highly oriented pyrolytic graphite (HOPG) and Dow Cyclotene, a low permittivity polymer, have been found to coalesce through surface diffusion at room temperature. We study this process by x-ray photoelectron spectroscopy under ultrahigh vacuum conditions, where cluster growth was measured through photoelectron emission intensity changes. Using a simple model, the coalescence (as opposed to diffusion) coefficients were determined for both untreated and Ar+-treated substrates. It was found that Ar+ treatment results in reductions in both coalescence coefficient and cluster size due to increased cluster/surface interaction. The atypical coalescence behavior of Cu on untreated HOPG is shown to be due to an absence of interfacial interaction.
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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) | 0.000 | 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 it