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Record W4400284469 · doi:10.1103/physrevb.110.024502

Magnetization amplification in the interlayer pairing superconductor <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:mn>4</mml:mn><mml:mrow><mml:mi>H</mml:mi><mml:mi>b</mml:mi></mml:mrow><mml:mtext>−</mml:mtext><mml:msub><mml:mi>TaS</mml:mi><mml:mn>2</mml:mn></mml:msub></mml:mrow></mml:math>

2024· article· lv· W4400284469 on OpenAlex
Chunxiao Liu, Shubhayu Chatterjee, Thomas Scaffidi, Erez Berg, Ehud Altman

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. B./Physical review. B · 2024
Typearticle
Languagelv
FieldMaterials Science
TopicIron-based superconductors research
Canadian institutionsUniversity of Toronto
FundersEuropean Research CouncilArmy Research OfficeGordon and Betty Moore FoundationNational Science Foundation
KeywordsPairingMagnetizationPhysicsSuperconductivityCondensed matter physicsQuantum mechanics

Abstract

fetched live from OpenAlex

A recent experiment on the bulk compound $4Hb\text{\ensuremath{-}}{\mathrm{TaS}}_{2}$ reveals an unusual time-reversal symmetry-breaking superconducting state that possesses a magnetic memory not manifest in the normal state. Here we provide a mechanism for this observation by studying the magnetic and electronic properties of $4Hb\text{\ensuremath{-}}{\mathrm{TaS}}_{2}$. We discuss the criterion for a small magnetization in the normal state in terms of spin and orbital magnetizations. Based on an analysis of lattice symmetry and Fermi surface structure, we propose that $4Hb\text{\ensuremath{-}}{\mathrm{TaS}}_{2}$ realizes superconductivity in the interlayer, equal-spin channel with a gap function whose phase winds along the Fermi surface by an integer multiple of $6\ensuremath{\pi}$. The enhancement of the magnetization in the superconducting state compared to the normal state can be explained if the state with a gap winding of $6\ensuremath{\pi}$ is realized, accounting for the observed magnetic memory. We discuss how this superconducting state can be probed experimentally by spin-polarized scanning tunneling microscopy.

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)0.006
metaresearch head score (Gemma)0.007
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesMeta-epidemiology (narrow), Science and technology studies, Scholarly communication, Research integrity, Insufficient payload (model declined to judge)
Consensus categoriesMeta-epidemiology (narrow), Science and technology studies, 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: Empirical
Teacher disagreement score0.916
Threshold uncertainty score1.000

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0060.007
Meta-epidemiology (narrow)0.0020.003
Meta-epidemiology (broad)0.0010.004
Bibliometrics0.0010.004
Science and technology studies0.0020.003
Scholarly communication0.0030.004
Open science0.0050.003
Research integrity0.0020.004
Insufficient payload (model declined to judge)0.6080.012

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 head0.032
GPT teacher head0.306
Teacher spread0.274 · 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