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Symmetry-enforced Fermi degeneracy in topological semimetal <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:mi>Rh</mml:mi><mml:msub><mml:mi>Sb</mml:mi><mml:mn>3</mml:mn></mml:msub></mml:mrow></mml:math>

2023· article· lv· W4385282704 on OpenAlexafffund
Ke Wang, L. Wang, I-L. Liu, Fabio Boschini, Marta Zonno, Matteo Michiardi, Eli Rotenberg, Aaron Bostwick, David Graf, B. J. Ramshaw, A. Damascelli, Johnpierre Paglione

Bibliographic record

VenuePhysical Review Materials · 2023
Typearticle
Languagelv
FieldPhysics and Astronomy
TopicTopological Materials and Phenomena
Canadian institutionsCanadian Institute for Advanced ResearchUniversity of British Columbia
FundersNatural Sciences and Engineering Research Council of CanadaGordon and Betty Moore FoundationNational Science Foundation
KeywordsSemimetalGeometric phaseCondensed matter physicsFermi levelTopological insulatorPhotoemission spectroscopyTopology (electrical circuits)Valence (chemistry)PhysicsMaterials scienceBand gapQuantum mechanicsX-ray photoelectron spectroscopyNuclear magnetic resonanceMathematics

Abstract

fetched live from OpenAlex

Following the discovery of topological insulators, new classes of topological materials such as Dirac, Weyl, and ``nodal'' semimetals have attracted considerable interest. This work reports an experimental exploration of RhSb${}_{3}$, a symmorphic cubic unfilled skutterudite compound that was predicted to host a quasi-linear electronic band dispersion long before the topological revolution. Angle-resolved photoemission spectroscopy, magnetotransport, and quantum oscillation measurements are used to confirm this material family to host a symmetry-enforced Fermi degeneracy, complete with nonzero Berry phase and location of the Fermi energy in the linear regime of the system's valence band.

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)0.002
metaresearch head score (Gemma)0.001
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesMeta-epidemiology (narrow), Scholarly communication, Insufficient payload (model declined to judge)
Consensus categoriesInsufficient 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 score0.945
Threshold uncertainty score1.000

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0020.001
Meta-epidemiology (narrow)0.0010.001
Meta-epidemiology (broad)0.0010.002
Bibliometrics0.0000.001
Science and technology studies0.0010.001
Scholarly communication0.0010.001
Open science0.0020.002
Research integrity0.0010.001
Insufficient payload (model declined to judge)0.3400.008

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 head0.026
GPT teacher head0.273
Teacher spread0.247 · 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

Citations2
Published2023
Admission routes2
Has abstractyes

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