Effect of nitrogen doping and pressure on the stability of
Yang Sun, Feng Zhang, Shunqing Wu, Vladimir Antropov, and Kai-Ming Ho
Phys. Rev. B 108, L020101 (2023) - Published 10 July, 2023
The near-ambient superconductivity of nitrogen-doped lutetium hydride remains a contentious topic. This paper discusses how pressure and nitrogen doping affect the stability of lutetium trihydride. The authors propose a structural model that illustrates improved stability by substituting hydrogen atoms with nitrogen and introducing vacancies. However, the study uncovers no theoretical evidence for strong electron-phonon coupling in these phases. These findings provide a possible way to understand the experimental structure and offer insights for future superconductivity investigations into this intriguing compound.
Parent structures of near-ambient nitrogen-doped lutetium hydride superconductor
Mingfeng Liu, Xiangyang Liu, Jiangxu Li, Jiaxi Liu, Yan Sun, Xing-Qiu Chen, and Peitao Liu
Phys. Rev. B 108, L020102 (2023) - Published 18 July, 2023
Structural phase transition involving octahedron tilting and ion migration in metal-halide perovskites: A machine-learning study
Xinjian Ouyang, Weijia Chen, Yanxing Zhang, Feng Zhang, Yuan Zhuang, Xiao Jie, Laijun Liu, and Dawei Wang
Phys. Rev. B 108, L020103 (2023) - Published 28 July, 2023



