Orbital excitation in Sr 2 CuO 2 Cl 2 resonant inelastic x-ray scattering at the Cu K pre-edge
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Bibliographic record
Abstract
We report resonant inelastic x-ray scattering (RIXS) study of $d\text{\ensuremath{-}}d$ orbital excitations in ${\text{Sr}}_{2}{\text{CuO}}_{2}{\text{Cl}}_{2}$ utilizing the intermediate state associated with a quadrupole transition. Fourfold azimuthal angle dependence of the pre-edge peak near the $\text{Cu}\text{ }K$ absorption edge confirms that the in-plane pre-edge peak arises from the $1s\ensuremath{\rightarrow}3{d}_{{x}^{2}\ensuremath{-}{y}^{2}}$ electric quadrupole transition. When the incident photon energy is tuned to this transition, we observed a RIXS excitation at 2 eV energy loss. This excitation is associated with the $d\text{\ensuremath{-}}d$ excitation of ${d}_{{x}^{2}\ensuremath{-}{y}^{2}}\ensuremath{\rightarrow}{d}_{yz,zx}$ based on the angular dependence of the quadrupole transition-matrix element of the scattered photon.
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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 | 0.000 | 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) | 0.000 | 0.000 |
Machine scores (provisional)
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Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
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