Natural and induced growth of VO2 (M) on VO2 (B) ultrathin films
Bibliographic record
Abstract
Abstract This work examines the synthesis of single phase VO 2 (B) thin films on LaAlO 3 (100) substrates, and the naturally-occurring and induced subsequent growth of VO 2 (M) phase on VO 2 (B) films. First, the thickness ( t ) dependence of structural, morphological and electrical properties of VO 2 films is investigated, evidencing that the growth of VO 2 (B) phase is progressively replaced by that of VO 2 (M) when t > ~11 nm. This change originates from the relaxation of the substrate-induced strain in the VO 2 (B) films, as corroborated by the simultaneous increase of surface roughness and decrease of the c-axis lattice parameter towards that of bulk VO 2 (B) for such films, yielding a complex mixed-phase structure composed of VO 2 (B)/VO 2 (M) phases, accompanied by the emergence of the VO 2 (M) insulator-to-metal phase transition. Second, the possibility of inducing this phase conversion, through a proper surface modification of the VO 2 (B) films via plasma treatment, is demonstrated. These natural and induced VO 2 (M) growths not only provide substantial insights into the competing nature of phases in the complex VO 2 polymorphs system, but can also be further exploited to synthesize VO 2 (M)/VO 2 (B) heterostructures at the micro/nanoscale for advanced electronics and energy applications.
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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 | 0.002 | 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 | 0.001 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.001 | 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".