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Partial auxeticity induced by nanoslits in the Yukawa crystal
Author(s) -
Pigłowski Paweł M.,
Wojciechowski Krzysztof W.,
Tretiakov Konstantin V.
Publication year - 2016
Publication title -
physica status solidi (rrl) – rapid research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.786
H-Index - 68
eISSN - 1862-6270
pISSN - 1862-6254
DOI - 10.1002/pssr.201600119
Subject(s) - yukawa potential , poisson distribution , auxetics , poisson's ratio , condensed matter physics , perpendicular , monte carlo method , isothermal process , materials science , spheres , crystal (programming language) , physics , molecular physics , geometry , quantum mechanics , composite material , thermodynamics , mathematics , statistics , astronomy , computer science , programming language
Monte Carlo simulations in the isobaric–isothermal ensemble with variable shape of the periodic box were used to investigate Poisson's ratios of the hard‐core repulsive Yukawa crystals with periodically distributed nanoslits. Each nanoslit, oriented perpendicularly to the crystallographic direction [010], was filled by a monolayer of hard spheres. It is shown that presence of the nanoslits leads to negative Poisson's ratio, as low as –0.57(2), in the [100][001]‐direction. This direction is not auxetic in the pure Yukawa crystal, i.e. shows positive Poisson's ratio, equal to 0.43(1).