Dataset for the paper "Electron-beam charge injection for contactless small-angle alignment in graphene/hBN heterostructures"

This Zenodo record contains the dataset and supporting code for the paper: "Electron-beam Charge Injection for Contactless Small-angle Alignment in Graphene/hBN Heterostructures" (preprint: arXiv:2510.03347). Content of the upload Figure_1.jpg, Figure_2.jpg, Figure_3.jpg: high-resolution source images corresponding to the main figures of the manuscript. rotation_overlay.py: Python script used to generate the rotation-overlay analysis and the associated visualizations shown in the paper. How the data were generatedThe figures and analysis were obtained from SEM-based electron-beam charge injection experiments on graphene/hBN heterostructures, combined with optical/Raman calibration and image-based twist-angle extraction. The rotation_overlay.py script performs the core processing steps described in the Methods section, including image alignment, ROI selection, rotational scanning, and fine-angle minimization. Reproducibility and usageThe provided figures are the exact files used to prepare the manuscript. The script can be run to reproduce the rotation-overlay results and to apply the same workflow to new SEM/optical images of similar heterostructures. All parameters are documented in the script header and comments.本Zenodo记录包含论文《石墨烯/hBN异质结构中非接触式小角度对准的电子束电荷注入（Electron-beam Charge Injection for Contactless Small-angle Alignment in Graphene/hBN Heterostructures）》（预印本：arXiv:2510.03347）对应的数据集与配套代码。 上传内容如下： Figure_1.jpg、Figure_2.jpg、Figure_3.jpg：对应论文主图的高分辨率源图像。 rotation_overlay.py：用于生成论文中旋转叠加分析及对应可视化结果的Python脚本。 数据生成方式： 本数据集的图表与分析结果源自针对石墨烯/六方氮化硼（graphene/hBN）异质结构开展的基于扫描电子显微镜（Scanning Electron Microscope, SEM）的电子束电荷注入实验，结合了光学/拉曼（Raman）校准与基于图像的扭转角提取流程。rotation_overlay.py脚本可执行论文方法部分所述的核心处理步骤，包括图像对齐、感兴趣区域（Region of Interest, ROI）选择、旋转扫描与精细角度寻优。 可复现性与使用说明： 本次上传的图表即为论文定稿所用的原始文件。该脚本可用于复现论文中的旋转叠加分析结果，也可将同款工作流应用于同类异质结构的扫描电镜/光学图像。脚本的头部与注释中已对所有参数进行了详细说明。