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首页> 外文期刊>Physica status solidi, B. Basic research >Poisson's ratio of degenerate crystalline phases of three-dimensional hard dimers and hard cyclic trimers
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Poisson's ratio of degenerate crystalline phases of three-dimensional hard dimers and hard cyclic trimers

机译：三维硬二聚体和硬环状三聚体的简并结晶相的泊松比

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摘要

Monte Carlo simulations of two three-dimensional hard-body models, hard dimers and hard cyclic trimers, were performed in the NpT ensemble. The Poisson's ratio was determined for degenerate crystalline phases in both systems. In contrast to the results of analogous simulations in two-dimensions, positive values were obtained both for the dimers and the trimers. However, the Poisson's ratio of the trimers was lower than that for the dimers and the latter was lower than that for the spheres. This suggests that a negative Poisson's ratio may be obtained for molecules composed of more spheres. (c) 2005 WILEY-VCH Verlag GmbH M Co. KGaA, Weinheim.
机译：在NpT集合中对两个三维硬体模型（硬二聚体和硬循环三聚体）进行了蒙特卡洛模拟。确定了两个系统中简并结晶相的泊松比。与二维模拟结果相反，二聚体和三聚体均获得正值。然而，三聚体的泊松比低于二聚体的泊松比，而二聚体的泊松比低于球体的泊松比。这表明对于由更多球组成的分子，可能获得负泊松比。 （c）2005 WILEY-VCH Verlag GmbH M Co. KGaA，魏因海姆。

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