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Record W2056041714 · doi:10.1063/1.2955454

Electronic structure of Se, Se–Te, and Se–Te–Sb systems: Some observations from the x-ray spectroscopy and <i>ab initio</i> calculations

2008· article· en· W2056041714 on OpenAlex
Yun Mui Yiu, T. K. Sham, Gurinder Kaur

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

VenueJournal of Applied Physics · 2008
Typearticle
Languageen
FieldEngineering
TopicChalcogenide Semiconductor Thin Films
Canadian institutionsCollege of the North AtlanticWestern University
Fundersnot available
KeywordsXANESAb initioAb initio quantum chemistry methodsDensity functional theorySpectroscopyElectronic structureX-ray photoelectron spectroscopyTernary operationChemistryX-ray spectroscopyAbsorption spectroscopyX-ray absorption spectroscopyMaterials scienceAtomic physicsMolecular physicsComputational chemistryNuclear magnetic resonancePhysicsMoleculeOptics

Abstract

fetched live from OpenAlex

Electronic structures of Se, Se80Te20, and Se80−xSbxTe20(0≤x≤9) systems have been investigated using x-ray photoelectron spectroscopy and x-ray absorption near edge spectroscopy (XANES). The experimental results show strong Se–Se and Se–Te interaction as well as antimony dilution effects in the ternary alloy. The interpretation of the results is assisted by theoretical calculations. The densities of states for the energy bands have been evaluated with the full potential augmented plane wave method based on the density functional theory (DFT) and the real-space multiple scattering (RSMS) approach using small clusters of model crystal structures. The ab initio calculation methods for the XANES spectra of Se, Se80Te20, and Se80−xSbxTe20(0≤x≤9) systems are compared with the experimental data. It is found that the DFT calculation provides better agreement with the pre-edge resonance, while RSMS yields good agreement with the postedge region. The interplay of x-ray spectroscopy results and theory is discussed.

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: Bench or experimental
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.203
Threshold uncertainty score0.682

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 integrity0.0000.001
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 head0.025
GPT teacher head0.224
Teacher spread0.199 · 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