Effect of Hydrogenation on the Optical Properties of Cobalt and Tantalum Thin Films
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Bibliographic record
Abstract
Thin films of cobalt are prepared using thermal evaporation method at pressure 10-5 torr. The hydrogen gas is introduced in chamber at different pressure from 0 Psi to 40 Psi to hydrogenate the films. Optical transmission is found to increase and optical absorption decrease with hydrogenation. The optical band gap in Co thin film is found to reduce with increasing of hydrogen pressure. The relative resistance in the Co thin films is also measured at different hydrogen pressures. It is found to vary nonlinear with increase in hydrogen pressure. The Raman Spectroscopy data show that intensity of Raman peaks is decrease with hydrogen pressure. The prepare film after hydrogenation shows the switchable behavior with variable optical band gap. The variation in optical band gap suggests electronic structural phase changes in thin films with hydrogenation. The surface morphology is carrying out for these films with and without hydrogenation by using optical microscope and Scanning Electron Microscope (SEM). Thin films of tantalum also prepared by using DC Sputtering unit and then hydrogenation at pressure 10 Psi. Transmission spectra and surface morphology also carry out for these films before and after hydrogenation. The optimum thickness for switchable mirrors observed was 170.5 nm in case of tantalum.
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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 | 0.003 |
| 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)
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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 it