Magnetic and Magnetocaloric Properties of YbVO<sub>3</sub> Single Crystals: Experiments and DFT Calculations
Bibliographic record
Abstract
In this paper, we mainly focus on the magnetic and magnetocaloric properties of YbVO 3 single crystals grown by the floating-zone method. The crystals present several phase transitions close to 104, 65, and 20 K involving mainly the vanadium sublattice. Particularly, the complex electronic and magnetic structures of YbVO 3 result in interesting thermal effects over a wide range of temperatures including a large inverse magnetocaloric effect close to 60 K. In fact, the maximum entropy change is found to be almost 12 J/kg K for a magnetic field change of 0 to 7 T at 64.25 K applied along the c axis and at 65.5 K along the ab plane. More interestingly, the strong magnetocrystalline anisotropy shown by the V 3+ sublattice results in a large rotating magnetocaloric effect (RMCE) at relatively high temperatures (60 K). This means that the refrigeration process can be achieved simply by spinning YbVO 3 single crystals in constant magnetic fields within the ac or bc planes instead of varying the external magnetic field. Our experimental findings are discussed and analyzed in the framework of Density Functional Theory (DFT) calculations.
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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 | 0.001 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.001 |
| Science and technology studies | 0.001 | 0.001 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.005 | 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".