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|Title:||The energy band structure of AxFe2Se2 (A = K, Rb) superconductors|
|Publisher:||American Institute of Physics Inc.|
|Abstract:||We study the band structure of antiferromagnetic AxFe2Se2 (A = K, Rb) superconductors by using first-principles electronic structure calculations which is density functional theory. In the vicinity of iron-vacancy, we identify the valence electrons of AxFe2Se2 will be filled up to the Fermi level and no semiconducting gap is observed. Hence, the AxFe2Se2 is a metallic instead of semiconducting which leads to superconductivity in the orbital-selective Mott phase. Similarly, there is non-vanishing density of states at the Fermi level. © 2014 AIP Publishing LLC.|
|Appears in Collections:||AIP Conference Proceedings|
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