Charge density wave in Sr<sub>14−<i>x</i></sub>Ca<sub><i>x</i></sub>Cu<sub>24</sub>O<sub>41</sub>
Bibliographic record
Abstract
Abstract Recent experimental results 1,2 revealed the stability of a peculiar charge density wave (CDW) with odd period ( λ = 3,5) in the coupled Cu 2 O 5 spin ladders in Sr 14− x Ca x Cu 24 O 41 , while the CDW with even period is unstable. Here we resolve this contradiction by solving the effective t − J model for the two coupled chains supplemented by the intersite interaction term V . Crucial to this finding is the novel interaction term V (responsible for the interladder repulsion between nearest neighbor holes), which is derived from the on‐site Hubbard‐like repulsion between electrons on the same oxygen sites but within two distinct orbitals which belong to two neighboring Cu 2 O 5 ladders in the charge transfer model 3 .
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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 | 0.001 | 0.000 |
| Meta-epidemiology (narrow) | 0.002 | 0.002 |
| Meta-epidemiology (broad) | 0.002 | 0.001 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.001 | 0.001 |
| Scholarly communication | 0.001 | 0.004 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.001 | 0.004 |
| Insufficient payload (model declined to judge) | 0.000 | 0.002 |
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".