Enhanced auxeticity in Yukawa systems due to introduction of nanochannels in $[001]$-direction
| Autor: | Paweł M. Pigłowski, Konstantin V. Tretiakov, Krzysztof Wojciechowski, Krzysztof Hyżorek |
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| Rok vydání: | 2016 |
| Předmět: |
010302 applied physics
Quantitative Biology::Biomolecules Materials science Auxetics Condensed matter physics Monte Carlo method Yukawa potential Nanotechnology 02 engineering and technology 021001 nanoscience & nanotechnology Condensed Matter Physics Poisson distribution 01 natural sciences Atomic and Molecular Physics and Optics symbols.namesake Molecular level Mechanics of Materials 0103 physical sciences Signal Processing symbols General Materials Science Electrical and Electronic Engineering 0210 nano-technology Civil and Structural Engineering |
| Zdroj: | Smart Materials and Structures. 25:054007 |
| ISSN: | 1361-665X 0964-1726 |
| DOI: | 10.1088/0964-1726/25/5/054007 |
| Popis: | A new approach to search for materials with auxetic properties by modifying structures of solids at molecular level has been proposed. The analysis of elastic properties of the face-centered cubic Yukawa crystals with very narrow nanochannels in the [001] crystallographic direction using Monte Carlo simulations in the isothermal–isobaric ensemble has been done. An influence of the size of nanochannels on the value of Poisson's ratio in main crystallographic directions has been studied. It has been shown that the insertion of nanochannels in the system causes a decrease of the Poisson's ratio in the direction from –0.15(2) to –0.29(3). That means an amplification of auxetity in the studied system twice as compared to the system without nanochannels. |
| Databáze: | OpenAIRE |
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