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Understanding doping, vacancy, lattice stability and superconductivity in KxFe2-ySe2

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arxiv 1606.07217 v1 pith:NHG662RV submitted 2016-06-23 cond-mat.supr-con cond-mat.mtrl-sci

Understanding doping, vacancy, lattice stability and superconductivity in KxFe2-ySe2

classification cond-mat.supr-con cond-mat.mtrl-sci
keywords beendopinglatticestabilitysuperconductivityvacancyaddressedattention
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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Metal-intercalated iron selenides are a class of superconductors that have received much attention but are less understood in comparison with their FeAs-based counterparts. Here, the controversial issues such as Fe vacancy, the real phase responsible for superconductivity, and lattice stability have been addressed based on first-principles calculations. New insights into the distinct features in terms of carrier doping have been revealed.

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