Local magnetism and spin correlations in the geometrically frustrated cluster magnet<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:msub><mml:mtext>LiZn</mml:mtext><mml:mn>2</mml:mn></mml:msub><mml:msub><mml:mtext>Mo</mml:mtext><mml:mn>3</mml:mn></mml:msub><mml:msub><mml:mtext>O</mml:mtext><mml:mn>8</mml:mn></mml:msub></mml:math>
Bibliographic record
Abstract
${\text{LiZn}}_{2}{\text{Mo}}_{3}{\text{O}}_{8}$ has been proposed to contain $S=\textonehalf{}$${\text{Mo}}_{3}{\text{O}}_{13}$ magnetic clusters arranged on a triangular lattice with antiferromagnetic nearest-neighbor interactions. Here, microwave and terahertz electron spin resonance, $^{7}\mathrm{Li}$ nuclear magnetic resonance, and muon spin rotation spectroscopies are used to characterize the local magnetic properties of ${\text{LiZn}}_{2}{\text{Mo}}_{3}{\text{O}}_{8}$. These results show the magnetism in ${\text{LiZn}}_{2}{\text{Mo}}_{3}{\text{O}}_{8}$ arises from a single isotropic $S=\textonehalf{}$electron per cluster and that there is no static long-range magnetic ordering down to $T$ = 0.07 K. Further, there is evidence of gapless spin excitations with spin fluctuations slowing down as the temperature is lowered. These data indicate strong spin correlations, which, together with previous data, suggest a low-temperature resonating valence-bond state in ${\text{LiZn}}_{2}{\text{Mo}}_{3}{\text{O}}_{8}$.
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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 | 0.000 | 0.000 |
| Science and technology studies | 0.001 | 0.001 |
| Scholarly communication | 0.001 | 0.000 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.002 | 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".