arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2409.09419cond-mat.supr-con
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Superband:一个超导体的电子能带与费米面结构数据库

Superband: an Electronic-band and Fermi surface structure database of superconductors

Tengdong Zhang, Chenyu Suo, Yanling Wu, Xiaodan Xu, Yong Liu, Dao-Xin Yao, Jun Li

AI总结:

本文构建了Superband数据库,通过高通量DFT计算获取2474种超导体的能带、态密度和费米面数据,并提供神经网络模型与公开访问工具,以支持超导机器学习和机理研究。

摘要:

与化学式和晶格结构等较简单的数据相比,电子能带结构数据为超导现象提供了更基本、更直观的认识。在这项工作中,我们生成了针对密度泛函理论(DFT)计算优化的超导体晶格结构文件。通过DFT,我们获得了超导体的电子能带,包括能带结构、态密度(DOS)和费米面数据。此外,我们概述了获取结构数据的高效方法,建立了高通量DFT计算协议,并介绍了从大规模DFT计算中提取这些数据的工具。作为一个示例,我们整理了一个包含2474种超导体及其实验测定的超导转变温度的数据集,该数据集非常适合机器学习应用。这项工作还为访问和利用该数据集提供了指南。此外,我们提出了一个为使用这些数据进行训练而设计的神经网络模型。所有上述数据和代码均可在http://www.superband.work公开获取。

英文摘要:

In comparison to simpler data such as chemical formulas and lattice structures, electronic band structure data provide a more fundamental and intuitive insight into superconducting phenomena. In this work, we generate superconductor's lattice structure files optimized for density functional theory (DFT) calculations. Through DFT, we obtain electronic band superconductors, including band structures, density of states (DOS), and Fermi surface data. Additionally, we outline efficient methodologies for acquiring structure data, establish high-throughput DFT computational protocols, and introduce tools for extracting this data from large-scale DFT calculations. As an example, we have curated a dataset containing information on 2474 superconductors along with their experimentally determined superconducting transition temperatures, which is well-suited for machine learning applications. This work also provides guidelines for accessing and utilizing this dataset. Furthermore, we present a neural network model designed for training with this data. All the aforementioned data and code are publicly available at http://www.superband.work.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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