Vogel-Fulcher Like Dielectric Response in Pb[(Mg,Zn) <SUB>1/3</SUB>Nb<SUB>2/3</SUB>]O<SUB>3</SUB> Ceramic
Bibliographic record
Abstract
Polycrystallme Pb[(Mg2^Zn t/3 ) 1/3 Nb2/3]03 having tetragonal perovskite type structure was prepared by a high temperature solid state reaction method Dielectric constant and loss tangent were measured over a frequency range 1 kHz to 1 MHz in the temperature region 32°C to 225°C Dielectric studies show the relaxor behaviour with diffuse phase transition The frequency dependence of the temperature of the permittivity maximum (T m ) has been modeled using Vogel-Fulcher relation The dielectric relaxation in Pb[(Mg2^Zn 1/3 ) 1/3 Nb2^]0 3 is found analogous to the magnetic relaxation in spm-glass system Cole-Cole analysis indicated that the relaxation is of polydispersive non-Debye type and the relaxation frequency shifts to higher frequencies with the increase in temperature
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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 | 0.000 | 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) | 0.008 | 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 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".