Hole stabilization and recombination in solid Ar investigated by low-energy electron stimulated desorption of neutral particles
Bibliographic record
Abstract
Positive charge creation and annihilation induced by low-energy electron impact in thin Ar films (20--180 monolayers) is investigated within the 5--30-eV range by measuring the desorption of metastable particles, the emission of UV photons, and the threshold energies for these processes. The mechanisms of charge formation and electron-hole recombination are determined from measurements of the charge/discharge dependence on the duration and energy of electron irradiation. The accumulation of positive charge results from the trapping of holes in the lattice, principally at the film/vacuum interface. The localization of these holes is stable at 20 K and their migration within the Ar film after irradiation is practically absent. After electron bombardment with electrons of energy ${E}_{\mathrm{irr}}>~13\mathrm{eV},$ the positively charged films can be discharged if irradiated by electrons of lower energy. Film discharging is dominated by a single process, mainly the recombination of ${\mathrm{Ar}}_{2}^{+}$ centers with near thermal energy electrons.
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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".