Rattling of Ag Atoms Found in the Low-Temperature Phase of Thermoelectric Argyrodite Ag<sub>8</sub>SnSe<sub>6</sub>
Bibliographic record
Abstract
A rattling of silver (Ag) atoms is identified in the low-temperature phase of Argyrodite compound Ag 8 SnSe 6 through a systematic multitemperature synchrotron radiation powder diffraction study. Both Bragg and diffuse scatterings from the sample can be well explained by the presence of the Ag rattling atoms. The Rietveld refinements of the low-temperature phase were significantly improved by introducing anisotropic thermal motions of Ag1 and Ag3 sites. The diffuse scattering observed in the low-temperature phase can be well explained by a combination of the first-order thermal diffuse and liquid-like scatterings, which arise due to the rattling of Ag1 and Ag3 sites. The rattling of Ag1 and Ag3 sites is restricted in the perpendicular direction of the Se triangles. This behavior is very similar to that of rattling atoms in the tetrahedrite and tennantite. The present findings are consistent with the low thermal conductivity observed in the low-temperature phase and the existence of low-energy excitation due to neutron scattering.
Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.
How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| 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 source (direct Gemma or distilled Codex), 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".