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Generating proton-disordered ice configurations using orientational simulated annealing

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Author(s):
Fidalgo Candido, Vitor ; Gomes de Aguiar Veiga, Roberto ; de Koning, Maurice
Total Authors: 3
Document type: Journal article
Source: Journal of Chemical Physics; v. 161, n. 6, p. 5-pg., 2024-08-14.
Abstract

We examine an algorithm for the creation of proton-disordered ice cells based on a simulated-annealing (SA) scheme for molecular orientations. Application to defect-free ice Ih, a clathrate-hydrate structure, and a random polycrystalline ice Ih sample demonstrates the SA technique to be effective, attaining maximum HB connectivity using relatively short cooling simulations, thus serving as an alternative method for those cases in which the application of topology-based methods is inhibited. (AU)

FAPESP's process: 13/08293-7 - CCES - Center for Computational Engineering and Sciences
Grantee:Munir Salomao Skaf
Support Opportunities: Research Grants - Research, Innovation and Dissemination Centers - RIDC
FAPESP's process: 18/16572-7 - Simulation of rare events using nonequilibrium processes
Grantee:Vitor Fidalgo Candido
Support Opportunities: Scholarships in Brazil - Doctorate (Direct)
FAPESP's process: 19/17874-0 - Multi-user Equipmente approved in grant 2013/08293-7, KAHUNA upgrade - HPE Apollo Gen10 supercomputer
Grantee:Munir Salomao Skaf
Support Opportunities: Multi-user Equipment Program
FAPESP's process: 16/23891-6 - Computer modeling of condensed matter
Grantee:Alex Antonelli
Support Opportunities: Research Projects - Thematic Grants