Thermal fluctuations in a titanomagnetite mineral: A two-level subsystem approach
Bibliographic record
Abstract
We present measurements of the field and temperature dependences of the relaxation of the magnetic moment of a magnetic mineral consisting of nanodimensional particles of titanomagnetite Fe3−xTixO4, with x≅0.1, embedded in a volcanic glass, over an observation time window of 10s⩽t⩽104s, following recoil from a positive saturating field to negative holding fields in the vicinity of the coercive field. The relaxation data are analyzed within the framework of a model which decomposes the free energy landscape into an ensemble of double well potentials, and the thermal fluctuation field Hf for this system is shown to exhibit a maximum as a function of temperature. Numerical simulations of viscosity isotherms based on the double well formalism are presented, which show that this maximum is a natural feature of the formalism, related to the distribution of characteristic energies of the double wells, and thus does not contradict the assumption of Arrhenius relaxation dynamics based on Maxwell-Boltzmann statistics.
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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".