Abstract In this paper we seek for detectable modifications in system properties induced by the Coulombian interactions between magnetic monopoles in an artificial spin ice system as an attempt to provide theoretical support to experiments devoted to measure the magnetic charge of monopole excitations. To this end an emergent vertex model was developed, validated and afterwards used to explore Coulombian interaction modifications on the distribution of monopole-like excitations in a magnetization reversal process. Our results show that the analysis of the skewness and kurtosis of the distribution of monopoles can be used to identify the presence of Coulombian interactions. These results are shown to be robust against the presence of disorder and temperature fluctuations.

中文翻译：

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人工自旋冰系统中的磁单极子相互作用测量

摘要 在本文中，我们寻求由人工自旋冰系统中磁单极子之间的库仑相互作用引起的系统特性的可检测修改，试图为致力于测量单极子激发磁荷的实验提供理论支持。为此，开发、验证了紧急顶点模型，然后用于探索在磁化反转过程中对类单极子激励分布的库仑相互作用修改。我们的结果表明，对单极子分布的偏度和峰态的分析可用于识别库仑相互作用的存在。这些结果表明对于无序和温度波动的存在是稳健的。