Sr<sub>6</sub>Ge<sub>3</sub>OSe<sub>11</sub>: A Rationally Designed Noncentrosymmetric Oxyselenide with Polar [GeOSe<sub>3</sub>] Building Blocks
Why this work is in the frame
A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.
Bibliographic record
Abstract
The strategy of partial isovalent anion substitution was used to discover the new noncentrosymmetric (NCS) quaternary oxyselenide Sr 6 Ge 3 OSe 11 . Sr 6 Ge 3 OSe 11 crystallizes in the NCS trigonal space group P 3 m 1 with lattice parameters of a = 10.268(5) Å, c = 6.363(3) Å, Z = 1. Spectroscopic studies revealed that Sr 6 Ge 3 OSe 11 has a wide transparent range in the IR region and an optical band gap of 2.39 eV. The nonlinear optical (NLO) properties of this compound were calculated via DFT as well as measured experimentally using a KH 2 PO 4 standard. The second-order nonlinear susceptibilities ( d ij ) of Sr 6 Ge 3 OSe 11 were calculated to be d 15 = −12.9 pm V –1, d 22 = −15.4 pm V –1, d 33 = 15.0 pm V –1, and d eff = 17.0 pm V –1 . Size-dependent second harmonic generation (SHG) intensity experiments revealed that Sr 6 Ge 3 OSe 11 is phase-matchable at 1064 nm with an intensity equal to 0.62 × KH 2 PO 4 . Additionally, this material exhibits ultralow thermal conductivity despite its relatively low molar mass, which is of interest in the thermoelectric energy conversion.
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.
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 | 0.002 | 0.001 |
| Meta-epidemiology (narrow) | 0.001 | 0.001 |
| Meta-epidemiology (broad) | 0.002 | 0.000 |
| Bibliometrics | 0.000 | 0.002 |
| Science and technology studies | 0.001 | 0.001 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.001 | 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 it