CANADIAN: Momentum dependence of crystal field levels in CeRhIn5
Bibliographic record
Abstract
In Kondo systems, localized f-electron states hybridize with itinerant electrons, leading to an emergent many-body state. Modern electronic structure calculations indicate that excited crystal electric field (CEF) and spin-orbit levels of the f-electron manifold need to be considered in strongly correlated metals such as the Kondo materials. Recent RIXS and ARPES experiments both indicate that these excited states acquire momentum dependence due to Kondo hybridization. Through the dynamical magnetic susceptibility, neutron scattering should access another aspect of this interesting momentum dependence. Yet, we are not aware of any single crystal neutron scattering studies of heavy fermion materials that could shed light Q-dependences of CEF levels. To investigate this subject, we propose to measure the single crystal inelastic spectrum of the heavy fermion material CeRhIn5 with the MAPS spectrometer with an incident energy of 50 meV. We request a total of 8 days to measure Q-dependences of the CEF levels in the antiferromagnetic, coherent paramagnetic and incoherent paramagnetic phases. The experiment will be performed on a well-characterized sample that has already been used to study the low-energy spin wave excitations.
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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 | 0.003 | 0.004 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.003 | 0.004 |
| Science and technology studies | 0.000 | 0.004 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.002 | 0.001 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.000 | 0.001 |
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".