no code implementations • 29 Jan 2021 • Zeying Zhang, Zhi-Ming Yu, Shengyuan A. Yang
Here, we propose the concept of magnetic higher-order nodal lines, which are nodal lines with higher-order energy splitting and realized in magnetic systems with broken time reversal symmetry.
Mesoscale and Nanoscale Physics Materials Science
no code implementations • 22 Dec 2020 • Jianzhou Zhao, Yilin Wang, Xiaolong Feng, Shengyuan A. Yang
Our results indicate that the electronic structures of LaFe$_2$As$_2$ and CaFe$_2$As$_2$ are not too different, which further suggest that superconductivity might also be induced in the collapsed phase of LaFe$_2$As$_2$ under similar non-hydrostatic conditions as for CaFe$_2$As$_2$.
Strongly Correlated Electrons Superconductivity
no code implementations • 17 Dec 2020 • Jia-Xiao Dai, Kai Wang, Shengyuan A. Yang, Y. X. Zhao
Particularly, the global Takagi's factorization can (cannot) be done on a $3$D ($2$D) sphere.
Mesoscale and Nanoscale Physics
no code implementations • 14 Dec 2020 • Qianqian Wang, Liemao Cao, Shi-Jun Liang, Weikang Wu, Guangzhao Wang, Ching Hua Lee, Wee Liat Ong, Hui Ying Yang, Lay Kee Ang, Shengyuan A. Yang, Yee Sin Ang
Our findings reveal the potential of MoSi$_2$N$_4$ and WSi$_2$N$_4$ monolayers as a novel 2D material platform for designing high-performance and energy-efficient 2D nanodevices.
Mesoscale and Nanoscale Physics Materials Science Applied Physics Computational Physics
no code implementations • 27 Jun 2017 • Shan Guan, Ying Liu, Zhi-Ming Yu, Shan-Shan Wang, Yugui Yao, Shengyuan A. Yang
However, the Dirac points in existing 2D materials, including graphene, are vulnerable against spin-orbit coupling (SOC).
Materials Science
no code implementations • 13 Jun 2017 • Cong Chen, Shan-Shan Wang, Lei Liu, Zhi-Ming Yu, Xian-Lei Sheng, Ziyu Chen, Shengyuan A. Yang
Based on their formation mechanisms, Dirac points in three-dimensional systems can be classified as accidental or essential.
Materials Science
