1D flat bands in phosphorene nanoribbons with pentagonal nature
Abstract
Materials with flat bands can serve as a promising platform to investigate strongly interacting phenomena. However, experimental realization of ideal flat bands is mostly limited to artificial lattices or moir\'e systems. Here we report a general way to construct one-dimensional (1D) flat bands in phosphorene nanoribbons (PNRs) with pentagonal nature: penta-hexa-PNRs and penta-dodeca-PNRs, wherein the corresponding 1D flat bands are directly verified by using angle-resolved photoemission spectroscopy. We confirm that the observed 1D flat bands originate from the electronic 1D zigzag and Lieb lattices, respectively, as revealed by the combination of bond-resolved scanning tunneling microscopy, scanning tunneling spectroscopy, tight-binding models, and first-principles calculations. Our study demonstrates a general way to construct 1D flat bands in 1D solid materials system, which provides a robust platform to explore strongly interacting phases of matter.
Keywords
Cite
@article{arxiv.2407.08353,
title = {1D flat bands in phosphorene nanoribbons with pentagonal nature},
author = {Shuo Sun and Jing-Yang You and Zhihao Cai and Jie Su and Tong Yang and Xinnan Peng and Yihe Wang and Daiyu Geng and Jian Gou and Yuli Huang and Sisheng Duan and Lan Chen and Kehui Wu and Andrew T. S. Wee and Yuan Ping Feng and Jia Lin Zhang and Jiong Lu and Baojie Feng and Wei Chen},
journal= {arXiv preprint arXiv:2407.08353},
year = {2024}
}
Comments
13 pages, 4 figures