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梅里尔：与微磁地球相关的稳健解释语言实验室。

MERRILL: Micromagnetic Earth Related Robust Interpreted Language Laboratory.

作者信息

Ó Conbhuí Pádraig, Williams Wyn, Fabian Karl, Ridley Phil, Nagy Lesleis, Muxworthy Adrian R

机构信息

School of GeoSciences University of Edinburgh Edinburgh United Kingdom.

Geological Survey of Norway Trondheim Norway.

出版信息

Geochem Geophys Geosyst. 2018 Apr;19(4):1080-1106. doi: 10.1002/2017GC007279. Epub 2018 Apr 6.

DOI:10.1002/2017GC007279
PMID:29937699
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC6001588/
Abstract

Complex magnetic domain structures and the energy barriers between them are responsible for pseudo-single-domain phenomena in rock magnetism and contribute significantly to the magnetic remanence of paleomagnetic samples. This article introduces MERRILL, an open source software package for three-dimensional micromagnetics optimized and designed for the calculation of such complex structures. MERRILL has a simple scripting user interface that requires little computational knowledge to use but provides research strength algorithms to model complex, inhomogeneous domain structures in magnetic materials. It uses a finite element/boundary element numerical method, optimally suited for calculating magnetization structures of local energy minima (LEM) in irregular grain geometries that are of interest to the rock and paleomagnetic community. MERRILL is able to simulate the magnetic characteristics of LEM states in both single grains, and small assemblies of interacting grains, including saddle-point paths between nearby LEMs. Here the numerical model is briefly described, and an overview of the scripting language and available commands is provided. The open source nature of the code encourages future development of the model by the scientific community.

摘要

复杂的磁畴结构及其之间的能量势垒是岩石磁性中伪单畴现象的原因，并且对古磁样品的剩磁有重大贡献。本文介绍了MERRILL，这是一个用于三维微磁学的开源软件包，它经过优化和设计，用于计算此类复杂结构。MERRILL具有简单的脚本用户界面，使用时几乎不需要计算知识，但提供了强大的研究算法来模拟磁性材料中复杂的非均匀畴结构。它使用有限元/边界元数值方法，最适合计算岩石和古磁学界感兴趣的不规则晶粒几何形状中的局部能量极小值（LEM）的磁化结构。MERRILL能够模拟单个晶粒以及相互作用晶粒的小集合中LEM状态的磁特性，包括附近LEM之间的鞍点路径。这里简要描述了数值模型，并提供了脚本语言和可用命令的概述。代码的开源性质鼓励科学界未来对该模型进行开发。

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