Negative differential resistance and spin filter effects in VS2 monolayers
| Autor: | Kailun Yao, Lihua Zhu, G. W. Peng |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Current (mathematics)
Condensed matter physics Chemistry General Chemical Engineering Biasing 02 engineering and technology General Chemistry 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences Nuclear magnetic resonance Zigzag Orientation (geometry) Monolayer 0210 nano-technology Electronic band structure Anisotropy Differential (mathematics) |
| Zdroj: | RSC Advances. 7:33733-33736 |
| ISSN: | 2046-2069 |
| Popis: | To determine the transport properties of VS2 monolayers, we have calculated the current based on the bias voltage, band structure and transmission spectrum for VS2 monolayers along the zigzag and armchair orientations by first-principles calculations combined with the non-equilibrium Green's function method. A perfect spin filtering effect for the two directions and strong anisotropy have been found. Meanwhile, the zigzag orientation device shows obvious negative differential resistance around a bias voltage of ±0.55 V. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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