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Record W3000392886

Orbital excitation in Sr 2 CuO 2 Cl 2 resonant inelastic x-ray scattering at the Cu K pre-edge

2009· article· en· W3000392886 on OpenAlex

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.

affAt least one author lists a Canadian institution in the pinned OpenAlex snapshot.

Bibliographic record

VenueAPS · 2009
Typearticle
Languageen
FieldPhysics and Astronomy
TopicAdvanced Condensed Matter Physics
Canadian institutionsUniversity of Toronto
Fundersnot available
KeywordsAtomic physicsResonant inelastic X-ray scatteringPhysicsExcitationQuadrupoleAbsorption edgeInelastic scatteringScatteringK-edgePhoton energyPhotonCondensed matter physicsInelastic neutron scatteringAbsorption spectroscopyOpticsBand gap
DOInot available

Abstract

fetched live from OpenAlex

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.

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 imitation

Not 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.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Bench or experimental · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.553
Threshold uncertainty score0.418

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0000.000

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.

Opus teacher head0.008
GPT teacher head0.249
Teacher spread0.240 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it