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Record W2099056704 · doi:10.1139/p03-002

The magnetic properties of oxygen-hole aluminum centres in crystalline SiO<sub>2</sub>. VI: A stable AlO<sub>4</sub>/Li centre

2003· article· en· W2099056704 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.

venuePublished in a venue whose home country is Canada.
no affNo Canadian affiliation: this work is invisible to an affiliation-only frame.
No Canadian affiliation. An affiliation-only frame, the usual design, would never have seen this work. It is one of the works that make the case for inverting the frame.

Bibliographic record

VenueCanadian Journal of Physics · 2003
Typearticle
Languageen
FieldMaterials Science
TopicGlass properties and applications
Canadian institutionsnot available
Fundersnot available
KeywordsElectron paramagnetic resonanceDiamagnetismLithium (medication)ParamagnetismIonOxygenPhysicsCrystallographySingle crystalQuartzAtomic physicsAtom (system on chip)Nuclear magnetic resonanceCondensed matter physicsMagnetic fieldMaterials scienceChemistry

Abstract

fetched live from OpenAlex

A new study, by electron paramagnetic resonance (EPR) spectroscopy at cryogenic temperatures, of aluminum oxygenic-hole centres in a α-quartz single crystal is reported. The well-known centre [AlO 4 ] 0 has been reinvestigated with somewhat improved techniques and computer analysis, confirming previous results in the literature. A previously unreported Al–Li centre has now been well characterized by EPR. From the fitted parameter matrices g, A( 27 Al), P( 27 Al), A( 7 Li), and P( 7 Li) we have determined not only that the hole resides on a "long-bonded" oxygen anion, as in [AlO 4 ] 0 , but have also established the position of the near-by interstitial lithium ion. One model for this centre is that it consists of a lithium atom Li 0 linked to the diamagnetic centre [AlO 4 ] – , yielding hole-bearing species [AlO 4 /Li] – via internal charge transfer. PACS Nos.: 7630Da, 7630Mi

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 score0.021
Threshold uncertainty score0.996

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 head0.012
GPT teacher head0.182
Teacher spread0.170 · 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