Understanding charge dynamics in silicon dangling bond structures for nanoscale devices
Bibliographic record
Abstract
A dangling bond (DB) on a silicon surface atomic has been found to behave as an atomic-scale quantum dot. This opens up the possibility of using DBs as building blocks for novel electronic structures, pushing the ultimate limits of nanoscale devices. Examples include: artificial molecules, nanowires, and alternate computing architectures such as the Quantum-Dot Cellular Automata (QCA). We study theoretically various aspects of DB structures on an H-terminated 2x1 Si(001) surface, which are of primary interest for the advancement of any device architecture: (i) The "diatomic" artificial DB molecule, composed of two tunnel-coupled DBs; its coherence and polarization properties in different ionic states; its potential as a charge qubit. (ii) The interaction of such DB structures with external control electrodes and manipulators, including the interaction with a scanning tunneling microscopy (STM) probe.
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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 | 0.000 | 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 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".