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Title: Characterizing structural features of two-dimensional particle systems through Voronoi topology

Journal Article · · Modelling and Simulation in Materials Science and Engineering
ORCiD logo [1];  [2]; ORCiD logo [3]; ORCiD logo [4]
  1. Bar Ilan University, Ramat Gan (Israel)
  2. Univ. of California, Los Angeles, CA (United States); Univ. of Wisconsin, Madison, WI (United States)
  3. Univ. of Wisconsin, Madison, WI (United States); Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
  4. Bar Ilan University, Ramat Gan (Israel); Israel Atomic Energy Commission (IAEC), Yavne (Israel). Soreq Nuclear Research Centre (Soreq NRC)

This paper introduces a new approach toward characterizing local structural features of two-dimensional particle systems. The approach can accurately identify and characterize defects in high-temperature crystals, distinguish a wide range of nominally disordered systems, and robustly describe complex structures such as grain boundaries. This paper also introduces two-dimensional functionality into the open-source software program VoroTop which automates this analysis. This software package is built on a recently-introduced multithreaded version of VORO++, enabling the analysis of systems with billions of particles on high-performance computer architectures.

Research Organization:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
USDOE; USDOE Office of Science (SC), Advanced Scientific Computing Research (ASCR)
Grant/Contract Number:
AC02-05CH11231
OSTI ID:
2481476
Journal Information:
Modelling and Simulation in Materials Science and Engineering, Journal Name: Modelling and Simulation in Materials Science and Engineering Journal Issue: 8 Vol. 32; ISSN 0965-0393
Publisher:
IOP PublishingCopyright Statement
Country of Publication:
United States
Language:
English

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