@article{Weng2023, 
author = {Xiao-Ji Weng and Jie Bai and Jingyu Hou and Yi Zhu and Li Wang and Penghui Li and Anmin Nie and Bo Xu and Xiang-Feng Zhou and Yongjun Tian},
title = {Experimental evidence of surface copper boride},
year = {2023},
journal = {Nano Research},
volume = {16},
number = {7},
pages = {9602-9607},
keywords = {copper boride, surface science, ultrahigh vacuum, structure characterization, first principles, formation mechanism},
url = {https://www.sciopen.com/article/10.1007/s12274-023-5496-2},
doi = {10.1007/s12274-023-5496-2},
abstract = {To validate the crystal structure and elucidate the formation mechanism of the unexpected surface copper boride, a systematic scanning tunneling microscope, X-ray photoelectron spectroscopy, angle-resolved photoemission spectroscopy, and aberration-corrected scanning transmission electron microscopy investigations were conducted to confirm the structure of copper-rich boride Cu8B14 after depositing boron on single-crystal Cu(111) surface under ultrahigh vacuum. First-principles calculations with defective surface models further indicate that boron atoms tend to react with Cu atoms near terrace edges or defects, which in turn shapes the intermediate structures of copper boride and leads to the formation of stable Cu-B monolayer via large-scale surface reconstruction eventually.}
}