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Room-temperature superconductivity in boron- and nitrogen-doped lanthanum superhydride

https://doi.org/10.1103/PhysRevB.104.214505

Ge, Yanfeng; Zhang, Fan; Hemley, Russell J. (December 2021, Physical Review B)

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Hole-doped room-temperature superconductivity in H3S1-xZ (Z=C, Si)

https://doi.org/10.1016/j.mtphys.2020.100330

Ge, Yanfeng; Zhang, Fan; Dias, Ranga P.; Hemley, Russell J.; Yao, Yugui (December 2020, Materials Today Physics)
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Ternary FePSe ₃ Atomic Layers with Competitive Temperature Coefficient of Resistance for Uncooled Infrared Bolometers

https://doi.org/10.1002/admi.202100491

Li, Alei; Ge, Yanfeng; Gan, Yuan; Ren, Yulu L.; He, Yingjie; Chen, Qianxue; Wang, Peipei; Zhang, Kai; Yang, Shengyuan A.; Wu, Judy Z.; et al (September 2021, Advanced Materials Interfaces)

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Pressure-induced phase transitions and superconductivity in a quasi–1-dimensional topological crystalline insulator α-Bi ₄ Br ₄

https://doi.org/10.1073/pnas.1909276116

Li, Xiang; Chen, Dongyun; Jin, Meiling; Ma, Dashuai; Ge, Yanfeng; Sun, Jianping; Guo, Wenhan; Sun, Hao; Han, Junfeng; Xiao, Wende; et al (September 2019, Proceedings of the National Academy of Sciences)

Significance The quasi–1-dimensional bismuth bromide, α-Bi₄Br₄, has been predicted to be a rotational symmetry-protected topological crystalline insulator. The structural study under high pressure indicates that the α-Bi₄Br₄phase is stable up to 4.3 GPa. There is a rich phase diagram of physical properties under high pressure in the α-Bi₄Br₄phase (i.e., a pressure-induced insulator–metal transition and, most importantly, a superconductive phase near the boundary of the insulator–metal transition). These findings help to answer questions, such as whether it is possible for the symmetry-protected electrons to form Cooper pairs. The α-Bi₄Br₄undergoes a pressure-induced structural transition above 4.3 GPa to a triclinicP-1 phase, which is another superconductive phase.
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