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cond-mat.mtrl-sci2025
Evolution from Topological Dirac Metal to Flat-band-Induced Antiferromagnet in Layered KxNi4S2 (0<=x<=1)
Hengdi Zhao, Xiuquan Zhou, Hyowon Park +17
Condensed matter systems with coexisting Dirac cones and flat bands, and a switchable control between them within a single system, are desirable but remarkably uncommon. Here we re…
cond-mat.mtrl-sci2024
Absence of high pressure ground state re-entrant ferroelectricity in PbTiO
R. E. Cohen, Yangzheng Lin, Muhtar Ahart +1
We study ferroelectricity in the classic perovskite ferroelectric PbTiO to high pressures with density functional theory (DFT) and experimental diamond-anvil techniques. We use…
cond-mat.mtrl-sci2024
High-pressure characterization of AgAuTe: Implications for strain-induced band tuning
Juyeon Won, Rong Zhang, Cheng Peng +7
Recent band structure calculations have suggested the potential for band tuning in a chiral semiconductor, AgAuTe, to zero upon application of negative strain. In this stud…