Monte Carlo Study of the Dynamic Screening Effect in Doped GaN
Bibliographic record
Abstract
Monte Carlo simulations of hot electron transport in n-type GaN when the interaction of the electrons with polar optical phonons is dynamically screened shows the effects of antiscreening at carrier densities of (1-5)x1024 m-3. At these densities full coupling between the Plasmon-phonon systems could be ignored to a first approximation together with degeneracy. Our calculations used the Lindhard formalism with Fermi-Dirac distribution and with neglecting the collisional damping when dynamic screened electron phonons scattering rates calculated. The screened scattering rate is strongly enhanced at low electron temperature and high carrier concentrations due to antiscreening property of inverse dielectric function. Antiscreening delays runaway and intervalley transfer to higher valleys. The peak drift velocity is enhanced and as result, so is the peak valley ratio.
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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) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.001 |
| 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".