Study of magnetic, nematic and superconducting properties of iron-based high-temperature superconductors: Variational cluster approximation

Two-orbital model describing iron-based high-temperature superconductors is studied within the limits of variational cluster approximation. It is found that in the undoped regime the stripe antiferromagnetic ordering is realized, while in doped regime antiferromagnetism and superconductivity coexist...

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Bibliographic Details
Main Authors: Zumagulov, Y. V., Neverov, V. D., Lukyanov, A. E., Krasavin, A. V.
Format: Conference Proceeding
Language:English
Subjects:
Antiferromagnetism
Approximation
Clusters
Electrons
Iron
Magnetic properties
Mathematical analysis
Superconductivity
Superconductors
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Summary:Two-orbital model describing iron-based high-temperature superconductors is studied within the limits of variational cluster approximation. It is found that in the undoped regime the stripe antiferromagnetic ordering is realized, while in doped regime antiferromagnetism and superconductivity coexist. In the superconducting state, two types of symmetry are found: extended inter-orbit s-wave and intra-orbit d-wave, in agreement with known experimental results.
ISSN:0094-243X
1551-7616
DOI:10.1063/1.5055199