Hexagonal Ge1-xSnx alloys maintain a direct bandgap at Gamma with strong bowing and robust polarization anisotropy in the dilute Sn regime.
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Structural, electronic, and optical properties of hexagonal GeSn from density functional theory
Hexagonal Ge1-xSnx alloys maintain a direct bandgap at Gamma with strong bowing and robust polarization anisotropy in the dilute Sn regime.