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Record W2063509720 · doi:10.1103/physrevlett.96.147601

Near-Surface Structural Phase Transition of<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msub><mml:mi>SrTiO</mml:mi><mml:mn>3</mml:mn></mml:msub></mml:math>Studied with Zero-Field<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>β</mml:mi></mml:math>-Detected Nuclear Spin Relaxation and Resonance

2006· article· lv· W2063509720 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

VenuePhysical Review Letters · 2006
Typearticle
Languagelv
FieldPhysics and Astronomy
TopicAtomic and Subatomic Physics Research
Canadian institutionsUniversity of AlbertaUniversity of British ColumbiaCanadian Institute for Advanced ResearchTRIUMF
Fundersnot available
KeywordsTetragonal crystal systemRelaxation (psychology)QuadrupoleMaterials sciencePhase transitionPhysicsPhase (matter)Energy (signal processing)Surface (topology)CrystallographyNuclear quadrupole resonanceCondensed matter physicsNuclear magnetic resonanceAtomic physicsChemistryGeometryQuantum mechanics

Abstract

fetched live from OpenAlex

We demonstrate that zero-field $\ensuremath{\beta}$-detected nuclear quadrupole resonance and spin relaxation of low energy $^{8}\mathrm{Li}$ can be used as a sensitive local probe of structural phase transitions near a surface. We find that the transition near the surface of a ${\mathrm{SrTiO}}_{3}$ single crystal occurs at ${T}_{c}\ensuremath{\sim}150\text{ }\text{ }\mathrm{K}$, i.e., $\ensuremath{\sim}45\text{ }\text{ }\mathrm{K}$ higher than ${T}_{c}^{\mathrm{bulk}}$, and that the tetragonal domains formed below ${T}_{c}$ are randomly oriented.

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)0.001
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesMeta-epidemiology (narrow), Science and technology studies, Insufficient payload (model declined to judge)
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Theoretical or conceptual · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.965
Threshold uncertainty score1.000

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0010.000
Meta-epidemiology (narrow)0.0010.002
Meta-epidemiology (broad)0.0010.002
Bibliometrics0.0000.001
Science and technology studies0.0020.002
Scholarly communication0.0010.001
Open science0.0010.001
Research integrity0.0010.002
Insufficient payload (model declined to judge)0.0000.001

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 head0.014
GPT teacher head0.260
Teacher spread0.246 · 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