Field Dependence of the Resistance Steps in Spatially Confined La<sub>0.3</sub>Pr<sub>0.4</sub>Ca<sub>0.3</sub>MnO<sub>3</sub> Thin Films
Bibliographic record
Abstract
Time-dependent measurements of the resistance were carried out on thin films of La0.3Pr0.4Ca0.3MnO3 which contain microbridges with lateral dimensions 2 × 2 µm2 and 25 × 25 µm2. The 2 × 2 µm2 microbridge is spatially confined such that at certain temperatures, its lateral dimension is comparable to the sizes of the metallic and insulating domains within the sample. At a fixed temperature, as time increases, sharp jumps in the resistance are observed superimposed upon a long-time evolution of the resistance. The magnitude and sign of these jumps can be controlled by the strength of the magnetic field. By contrast, such resistance jumps are virtually non-existent in the 25 × 25 µm2 microbridge. The results are described within a model of percolation or de-percolation of metallic domains within the confined region of the thin film.
Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.
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 | 0.002 | 0.000 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.001 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.002 | 0.000 |
| Research integrity | 0.000 | 0.001 |
| 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".