Low-frequency noise and hysteresis in graphene field-effect transistors on oxide
Why this work is in the frame
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Bibliographic record
Abstract
The authors report measurements of low-frequency noise and hysteresis in graphene monolayer and bilayer field-effect transistors (FETs) fabricated on 90 and 290 nm oxidised silicon substrates. The authors observe hysteresis induced by stressing the oxide up to fields of 2 MV/cm and have characterised the hysteresis against stress time and sample temperature. Low-frequency current noise with a 1/f2 spectral density arises from the drift of neutrality point voltage, and subsequent drift of graphene FET channel current. A simple model of charge trapping at the graphene–oxide interface and thermally activated ion motion accounts for the temperature dependence of the observed hysteresis.
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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