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Record W2095518764 · doi:10.1103/physrevlett.93.237201

Spin Dynamics in the Carrier-Doped<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>S</mml:mi><mml:mo>=</mml:mo><mml:mfrac><mml:mn>1</mml:mn><mml:mn>2</mml:mn></mml:mfrac></mml:math>Triangular Lattice of<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msub><mml:mrow><mml:mi mathvariant="normal">N</mml:mi><mml:mi mathvariant="normal">a</mml:mi></mml:mrow><mml:mi>x</mml:mi></mml:msub><mml:msub><mml:mrow><mml:mi mathvariant="normal">C</mml:mi><mml:mi mathvariant="normal">o</mml:mi><mml:mi mathvariant="normal">O</mml:mi></mml:mrow><mml:mn>2</mml:mn></mml:msub><mml:mo>·</mml:mo><mml:mi>y</mml:mi><mml:msub><mml:mi mathvariant="normal">H</mml:mi><mml:mn>2</mml:mn></mml:msub><mml:mi mathvariant="normal">O</mml:mi></mml:math>

2004· article· lv· W2095518764 on OpenAlexaff
Fanlong Ning, Takashi Imai, B. W. Statt, F. C. Chou

Bibliographic record

VenuePhysical Review Letters · 2004
Typearticle
Languagelv
FieldPhysics and Astronomy
TopicPhysics of Superconductivity and Magnetism
Canadian institutionsCanadian Institute for Advanced ResearchUniversity of TorontoMcMaster University
Fundersnot available
KeywordsPhysicsValence (chemistry)CrystallographyCondensed matter physicsQuantum mechanicsChemistry

Abstract

fetched live from OpenAlex

We probed the local electronic properties of the mixed-valent ${\mathrm{C}\mathrm{o}}^{+4\ensuremath{-}x}$ triangular lattice in ${\mathrm{N}\mathrm{a}}_{x}{\mathrm{C}\mathrm{o}\mathrm{O}}_{2}\ifmmode\cdot\else\textperiodcentered\fi{}y{\mathrm{H}}_{2}\mathrm{O}$ by $^{59}\mathrm{C}\mathrm{o}$ NMR. We observed two distinct types of Co sites for $x\ensuremath{\ge}\frac{1}{2}$, but the valence seems averaged out for $x\ensuremath{\sim}\frac{1}{3}$. Local spin fluctuations exhibit qualitatively the same trend down to $\ensuremath{\sim}100\text{ }\text{ }\mathrm{K}$ regardless of the carrier concentration $x$, and hence the nature of the electronic ground state. A canonical Fermi-liquid behavior emerges below $\ensuremath{\sim}100\text{ }\text{ }\mathrm{K}$ only for $x\ensuremath{\sim}\frac{1}{3}$.

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.

How this classification was reachedexpand

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)0.011
metaresearch head score (Gemma)0.006
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesMeta-epidemiology (narrow), Meta-epidemiology (broad), Science and technology studies, Scholarly communication, Open science, Research integrity, Insufficient payload (model declined to judge)
Consensus categoriesMeta-epidemiology (narrow), Science and technology studies, Open science, Research integrity, Insufficient payload (model declined to judge)
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Bench or experimental · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: none
Teacher disagreement score0.885
Threshold uncertainty score0.998

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0110.006
Meta-epidemiology (narrow)0.0060.012
Meta-epidemiology (broad)0.0030.012
Bibliometrics0.0030.008
Science and technology studies0.0090.009
Scholarly communication0.0090.012
Open science0.0140.012
Research integrity0.0100.012
Insufficient payload (model declined to judge)0.6010.011

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 head0.015
GPT teacher head0.242
Teacher spread0.227 · 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

Classification

machine, unvalidated

Machine predicted; both teacher heads agree on what is shown here.

Study designBench or experimental
Domainnot available
GenreEmpirical

How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".

Quick stats

Citations53
Published2004
Admission routes1
Has abstractyes

Explore more

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