Shuxiang Xu

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Emergence of strong-coupling superconductivity and quantum criticality correlated with Lifshitz transitions in the alternate stacking compound $4{H}_{b}\text{\ensuremath{-}}\mathrm{Ta}{\mathrm{S}}_{2}$

Apr 24, 2024 | link.aps.org | Shuxiang Xu |Junze Deng |Jingjing Gao

Shuxiang Xu1,2,*, Junze Deng1,*, Jingjing Gao3,*, Fanyu Meng4,*, Lifen Shi1,5, Pengtao Yang1, Ningning Wang1,5, Ziyi Liu1,5, Jianping Sun1,5, Yoshiya Uwatoko6, Hechang Lei4, Xuan Luo3, Yuping Sun7,3,8, Nanlin Wang2, Zhijun Wang1,5,9,†, Bosen Wang1,5,9,‡, and Jinguang Cheng1,5,§ 1Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China 2International Center for Quantum Materials, School of Physics, Peking University,...
From semiconductor to Fermi metal and emergent density-wave-like transition in the quasi-one-dimensional $n$-type ${\mathrm{Bi}}_{19}{\mathrm{S}}_{27}{\mathrm{I}}_{3}$ under hydrostatic pressure

Apr 17, 2024 | link.aps.org | Shuxiang Xu |Ziyi Liu |Pengtao Yang

We report on crystal growth and physical properties of the quasi-one-dimensional compound Bi19S27I3 by combining crystal structure, electrical resistivity, magnetic properties, Seebeck coefficient, Hall coefficient as well as hydrostatic pressure effect up to 11.5 GPa. Unlike p-type Bi19S27I3 crystals, the maximum size of high-quality n-type Bi19S27I3 crystals can reach 2–3 mm by optimizing the chemical vapor transport method.

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