The energy band structure of AxFe2Se2 (A = K, Rb) superconductors

The energy band structure of AxFe2Se2 (A = K, Rb) superconductors

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 an...

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Bibliographic Details
Main Authors: N.A., Zabidi, M.Z., Azhan, A.N., Rosli, K.N, Shrivastava
Format: Conference Paper
Language:en_US
Published: American Institute of Physics Inc. 2015
Subjects:
band structure
density-functional theory
iron-pnictide
Superconductivity
Online Access:http://ddms.usim.edu.my/handle/123456789/9254
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Institution: Universiti Sains Islam Malaysia
Language: en_US
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Summary: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.

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