Anomalous behavior in a three-dimensional frustrated itinerant electron magnet
Bibliographic record
Abstract
We present a simple microscopic theory for the magnetic and electronic properties of a three-dimensional frustrated itinerant electron magnet. Based on the single-band Hubbard model, it is investigated in the weak-correlation limit at a half-filling on the pyrochlore lattice. A doubly-degenerate flat band in the bare spectrum emerges as a character of the fully frustrated geometry. The random-phase-approximation dynamical susceptibility reproduces some characters in the low-frequency regime that were found in the neutron inelastic-scattering experiment of the cubic Laves compound Y(Sc)Mn 2 , especially in the spectral intensity distribution in the reciprocal space and in the almost irrelevant feature of the distribution to frequency. The quasi-particle self-energy shows a peculiarity, resulting from an anomalous frequency dependence in the non-interacting dynamical susceptibility, and then it leads to the breakdown of the Fermi-liquid picture. PACS No.: 75.25+z
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot 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.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 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) | 0.000 | 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 teacher head, 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".