Thermoelectric Properties of Re<sub>3</sub>Ge<sub>0.6</sub>As<sub>6.4</sub> and Re<sub>3</sub>GeAs<sub>6</sub> in Comparison to Mo<sub>3</sub>Sb<sub>5.4</sub>Te<sub>1.6</sub>
Bibliographic record
Abstract
Heavily doped narrow gap semiconductors with complex crystal structures are prime candidates for thermoelectric materials. The arsenides Re 3 (Ge,As) 7 are new examples with promising thermoelectric properties, comparable with the isostructural Mo 3 Sb 5.4 Te 1.6, a competitive high-temperature material. Various doping levels may be achieved by using different Ge/As ratios. Re 3 (Ge,As) 7 was prepared by heating the elements in the desired ratios in evacuated silica tubes between 600 and 800 °C. Re 3 GeAs 6 crystallizes in the cubic Ir 3 Ge 7 type, space group Im 3̄ m, with a = 8.73202(8) Å. It exhibits high Seebeck coefficient, high electrical conductivity, and reasonably low thermal conductivity. Moreover, the thermoelectric figure-of-merit ZT = TS 2 σ/κ increases rapidly with increasing temperature, as desired for high-temperature thermoelectrics.
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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 | 0.009 | 0.003 |
| Meta-epidemiology (narrow) | 0.006 | 0.006 |
| Meta-epidemiology (broad) | 0.010 | 0.002 |
| Bibliometrics | 0.002 | 0.005 |
| Science and technology studies | 0.002 | 0.003 |
| Scholarly communication | 0.002 | 0.003 |
| Open science | 0.005 | 0.003 |
| Research integrity | 0.004 | 0.003 |
| 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 itClassification
machine, unvalidatedMachine predicted; both teacher heads agree on what is shown here.
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".