Structure and superconductivity in a ternary selenide PbSnSe2 alloy of three-dimensional PbSe and two-dimensional SnSe under pressureRemoveBinbin Yue, Wei Zhong, Huchen Shu, Kaiwen Li, Yi Tan, Jingwei Miao, E. Karaca, D. Errandonea, and Fang HongPhys. Rev. B 114, 074502 (2026)