<i>Ab initio</i>insight into the formation of small polarons: A study across four metal peroxides
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Bibliographic record
Abstract
In this ab initio study, we investigate the initial stages of small polaron formation across four metal peroxides. By separating out electronic and lattice energy contributions to the formation of electron polarons, we find both large and small formation barriers directly correlated with an electronic relaxation delay. Further analysis of the electronic structure evolution during polaron formation, within the constraints set by the generalized form of Koopmans' theorem, reveals that hybridization between the polaron anchoring orbital and the conduction band minimum determines the electronic relaxation delay. This hybridization physics is shown to play a dominant role in the magnitude of a polaron formation barrier and the adiabaticity of polaron charge localization. Weaker hybridization is correlated with larger more diabatic formation barriers, while stronger hybridization is correlated with smaller more adiabatic formation barriers. These ab initio insights may lead to new approaches towards tailoring the formation of small polarons in energy and electronic materials.
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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 | 0.001 | 0.001 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.002 | 0.001 |
| Bibliometrics | 0.000 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.001 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.000 | 0.001 |
| Insufficient payload (model declined to judge) | 0.000 | 0.001 |
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