居里温度
钙钛矿(结构)
支持向量机
机器学习
人工智能
材料科学
工作(物理)
随机森林
计算机科学
相关性(法律)
相关向量机
相变
算法
凝聚态物理
热力学
化学
物理
结晶学
铁磁性
政治学
法学
作者
Xiao Zhai,Mingtong Chen,Wei Lu
标识
DOI:10.1016/j.commatsci.2018.04.031
摘要
Curie temperature (Tc), the second order phase transition temperature, is also one of the important physical properties of perovskite materials. It is a meaningful work to quickly and efficiently predict Tc of new perovskite materials before doing a considerable amount of experimental work. In the work, SVM (support vector machine), RVM (relevance vector machine) and RF (random forest) were employed to establish the prediction models of Tc with the physicochemical parameters, respectively. The results reveal that the three models all have high precision and reliability. According to K-fold cross validation, the SVR model had better prediction performance than the RVM and RF models. Meanwhile, the potential perovskite material with higher Tc was found by using the SVR model integrated with the search strategy of genetic algorithm from the virtual samples. The methods outlined here can provide valuable hints into the exploration of materials with desired property and can accelerate the process of materials design.
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