Synthesis of WTe<sub>2</sub> Nanowires with Increased Electron Scattering
Bibliographic record
Abstract
Tungsten ditelluride (WTe2) has many interesting properties such as its extremely large nonsaturating magnetoresistance and quantum spin Hall state in the monolayer limit. The anisotropic crystal structure of WTe2 can allow for isolation of particular crystal directions to study the predicted Weyl states or crystal-symmetry-dependent magnetoresistance when studied at limited dimensions. In particular, the recent demonstration of superconductivity in WTe2 monolayer suggests that realizing nanowire geometry for WTe2 may be important to investigate potential Majorana zero modes predicted in one-dimensional topological superconductors. In this work, we demonstrate a large-yield, low-temperature synthesis of WTe2 nanowires, an approximate one-dimensional system, by converting WO3 nanowires via tellurization. The nanowires are single crystalline and have a higher resistivity than WTe2 exfoliated flakes with similar thickness. The increased resistivity is attributed to increased scattering from imperfect surfaces and higher surface-to-volume ratios of the WTe2 nanowires. We demonstrate that the synthesis method is generalizable to other transition-metal dichalcogenides, laying the foundation for further study of this class of materials in the one-dimensional limit.
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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 | 0.000 | 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) | 0.000 | 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".