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4. A novel two-dimensional all-carbon Dirac node-line semimetal

Author

Wang, Youjie, Gao, Qian, and Hu, Zhenpeng

Subjects
Condensed Matter - Materials Science
Abstract

Carbon allotropes have vast potential in various applications, including superconductivity, energy storage, catalysis, and photoelectric semiconductor devices. Recently, there has been significant research interest in exploring new carbon materials that exhibit unique electronic structures. Here, we propose a novel two-dimensional (2D) carbon allotrope called TCH-SSH-2D, which possesses a Dirac node-line (DNL) semimetallic state. The structure of TCH-SSH-2D is derived from the TCH-type Archimedean polyhedral carbon cluster units, combined with the SSH lattice model, possessing a space group of tetragonal P4/mmm. Using first-principles calculations, we demonstrate that the system is dynamically, thermodynamically, and mechanically stable. It exhibits an energetically favorable structure with no imaginary frequency in the phonon dispersion curves and elastic constants satisfying the Born-Huang stability criterion. Our findings not only contribute to a deeper understanding of the carbon allotrope family but also provide an opportunity to explore unique Dirac states in two-dimensional pure carbon systems.

Published
2023

6. Multi-rotor eVTOL Safety Interval Assessment Based on Improved Event Model

Author

Wang, Xinglong, Wang, Youjie, Goos, Gerhard, Series Editor, Hartmanis, Juris, Founding Editor, van Leeuwen, Jan, Series Editor, Hutchison, David, Editorial Board Member, Kanade, Takeo, Editorial Board Member, Kittler, Josef, Editorial Board Member, Kleinberg, Jon M., Editorial Board Member, Kobsa, Alfred, Series Editor, Mattern, Friedemann, Editorial Board Member, Mitchell, John C., Editorial Board Member, Naor, Moni, Editorial Board Member, Nierstrasz, Oscar, Series Editor, Pandu Rangan, C., Editorial Board Member, Sudan, Madhu, Series Editor, Terzopoulos, Demetri, Editorial Board Member, Tygar, Doug, Editorial Board Member, Weikum, Gerhard, Series Editor, Vardi, Moshe Y, Series Editor, Bertino, Elisa, Editorial Board Member, Gao, Wen, Editorial Board Member, Steffen, Bernhard, Editorial Board Member, Yung, Moti, Editorial Board Member, Woeginger, Gerhard, Editorial Board Member, Harris, Don, editor, and Li, Wen-Chin, editor

Published
2024
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33. Long-term outcomes of COVID-19 convalescents: An 18.5-month longitudinal study in Wuhan

Author

Guo, Yi, Wang, Hao, Xiao, Mingzhong, Guan, Xin, Lei, Yanshou, Diao, Tingyue, Long, Pinpin, Zeng, Rui, Lai, Xuefeng, Cai, Hao, You, Yutong, Wen, Yuying, Li, Wenhui, Wang, Xi, Wang, Yufei, Chen, Qinlin, Yang, Yuchan, Qiu, Yutong, Chen, Jishuai, Zeng, Huidan, Ni, Wei, Zhao, Youyun, Ouyang, Kani, Wang, Jingzhi, Wang, Qi, Liu, Li, Song, Lulu, Wang, Youjie, Guo, Huan, Li, Xiaodong, Wu, Tangchun, and Yuan, Yu

Published
2023
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