Auxeticity of Yukawa Systems with Nanolayers in the (111) Crystallographic Plane

Autor: Jakub W. Narojczyk, Krzysztof Wojciechowski, Artur A. Poźniak, Paweł M. Pigłowski, Konstantin V. Tretiakov
Jazyk: angličtina
Rok vydání: 2017
Předmět:
Zdroj: Materials; Volume 10; Issue 11; Pages: 1338
Materials
Materials, Vol 10, Iss 11, p 1338 (2017)
ISSN: 1996-1944
DOI: 10.3390/ma10111338
Popis: Elastic properties of model crystalline systems, in which the particles interact via the hard potential (infinite when any particles overlap and zero otherwise) and the hard-core repulsive Yukawa interaction, were determined by Monte Carlo simulations. The influence of structural modifications, in the form of periodic nanolayers being perpendicular to the crystallographic axis [111], on auxetic properties of the crystal was investigated. It has been shown that the hard sphere nanolayers introduced into Yukawa crystals allow one to control the elastic properties of the system. It has been also found that the introduction of the Yukawa monolayers to the hard sphere crystal induces auxeticity in the [ 11 1 ¯ ] [ 112 ] -direction, while maintaining the negative Poisson’s ratio in the [ 110 ] [ 1 1 ¯ 0 ] -direction, thus expanding the partial auxeticity of the system to an additional important crystallographic direction.
Databáze: OpenAIRE