Coordination-Induced Shifts of Absorption and Binding Energies in the SrFe<sub>1−<i>x</i></sub>Zn<sub><i>x</i></sub>O<sub>3−δ</sub> System
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 SrFe 1− x Zn x O 3−δ system (0 ≤ x ≤ 1) was synthesized and investigated by X-ray absorption near-edge spectroscopy (XANES) and X-ray photoelectron spectroscopy (XPS). These techniques were used to examine the effect of substitution on metal charge and coordination number (CN) and to study the influence of ground-state and final-state effects on spectral energies. As x increases, a greater oxygen deficiency lowers the transition-metal CN, as observed by examination of Fe K- and Zn K-edge XANES spectra. Substitution of Fe by Zn results in shifts in the (Fe 2p and Zn 2p) XPS binding energies and (Fe and Zn) K-edge XANES absorption energies that are much greater than the shifts observed in the corresponding Fe L- and Zn L-edge XANES absorption energies. These shifts are due to increasing final-state relaxation with decreasing metal CN. The O K-edge XANES absorption energies and O 1s binding energies were found to shift in a similar fashion because of ground-state effects owing to a greater screening of the O nuclear charge as Fe 3+/4+ is replaced by more electron rich Zn 2+ atoms.
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 | 0.001 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.000 | 0.001 |
| 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