6 papers
Impact of electronic correlations on the superconductivity of high-pressure CeH
Siyu Chen, Yao Wei, Bartomeu Monserrat +2
Rare-earth superhydrides have attracted considerable attention because of their high critical superconducting temperature under extreme pressures. They are known to have localized…
Band-Gap Tunability in Anharmonic Perovskite-like Semiconductors Driven by Polar Electron-Phonon Coupling
Pol BenÃtez, Ruoshi Jiang, Siyu Chen +5
The ability to finely tune optoelectronic properties in semiconductors is crucial for the development of advanced technologies, ranging from photodetectors to photovoltaics. In thi…
High-chirality and multiquaternion Weyl nodes in hexagonal ReO
Siyu Chen, Robert-Jan Slager, Bartomeu Monserrat +1
The formation of two-band nodal points in gapless topological phases, referred to as conventional Weyl nodes, relies solely on translational symmetry. However, when coupled with ot…
Origin of competing charge density waves in kagome metal ScVSn
Kang Wang, Siyu Chen, Sun-Woo Kim +1
Understanding competing charge density wave (CDW) orders in the bilayer kagome metal ScVSn remains challenging. Experimentally, upon cooling, short-range order with wave ve…
Giant Electron-Phonon Coupling Induced Band-Gap Renormalization in Anharmonic Silver Chalcohalide Antiperovskites
Pol BenÃtez, Siyu Chen, Ruoshi Jiang +6
Silver chalcohalide antiperovskites (CAP), AgXY (X = S, Se; Y = Br, I), are a family of highly anharmonic inorganic compounds with great potential for energy applications. Ho…
Characterization of Spin-Orbit Effects in Superconductors InBi and InSb
Yao Wei, Siyu Chen, Bartomeu Monserrat
We report a first principles computational analysis of two phonon-mediated superconductors, InBi and InSb. We show that spin-orbit coupling leads to splitti…