Field-Induced Coupled Superconductivity and Spin Density Wave Order in the Heavy Fermion Compound<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msub><mml:mi>CeCoIn</mml:mi><mml:mn>5</mml:mn></mml:msub></mml:math>
Bibliographic record
Abstract
The high-field superconducting state in ${\mathrm{CeCoIn}}_{5}$ has been studied by transverse field muon spin rotation measurements with an applied field parallel to the crystallographic $c$ axis close to the upper critical field ${\ensuremath{\mu}}_{0}{H}_{c2}=4.97\text{ }\text{ }\mathrm{T}$. At magnetic fields ${\ensuremath{\mu}}_{0}H\ensuremath{\ge}4.8\text{ }\text{ }\mathrm{T}$ the muon Knight shift is enhanced and the superconducting transition changes from second order towards first order as predicted for Pauli-limited superconductors. The field and temperature dependence of the transverse muon spin relaxation rate $\ensuremath{\sigma}$ reveal paramagnetic spin fluctuations in the field regime from $2\text{ }\text{ }\mathrm{T}\ensuremath{\le}{\ensuremath{\mu}}_{0}H<4.8\text{ }\text{ }\mathrm{T}$. In the normal state close to ${H}_{c2}$ correlated spin fluctuations as described by the self-consistent renormalization theory are observed. The results support the formation of a mode-coupled superconducting and antiferromagnetically ordered phase in ${\mathrm{CeCoIn}}_{5}$ for $H$ directed parallel to the $c$ axis.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.003 | 0.000 |
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.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
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".