Topology-Dependent Enhancement of Pyroelectric Property in Nanoarchitected GaN Metamaterials
Bibliographic record
Abstract
. This study investigates the pyroelectric properties of nanoarchitected gallium nitride (GaN) metamaterials with distinctive topologies, i.e., body-centered cube, octet truss, gyroid, and spinodoid, using molecular dynamics simulations. Our findings reveal a topology-dependent enhancement in the pyroelectric coefficient, primarily affected by the piezoelectric stress constant and thermal expansion coefficient. We demonstrate that decreasing the relative density further enhances the pyroelectric coefficient due to an increased surface-to-volume ratio that enhances the surface effects. Finally, we compute the pyroelectric figures of merit for thermal energy harvesting application, highlighting the superior pyroelectric performance of nanoarchitected GaN metamaterials compared to bulk GaN and GaN nanowires. These results underscore the potential of nanoscale topology engineering in the field of pyroelectricity for realizing next-generation nanogenerators, thermal imaging devices, and self-powered nanosensors.
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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) | 0.001 | 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 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".