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Spin-orbit Coupling in Five-Orbital Model for Iron Pnictides

Year: 2024

Type: article

Abstract: The effect of spin-orbit coupling on the band structure and Fermi surface in the five-orbital model for iron-based superconductors is studied. Since there are two iron ions in the unit cell and their orbitals indirectly coupled through as orbitals, we introduce the constants of the intra- and inter-ion spin-orbit coupling in the effective model to separate the effect of the corresponding contributions on the band structure. We show that the intra- and inter-ion parts of the spinorbit coupling lead to Fermi surface topology change – splitting of the four contours of the Fermi surface around the point M = (π, π).

Source: Superconductivity Fundamental and Applied Research

DOI: 10.62539/2949-5644-2024-0-4-12-18

Authors: D. A. Ivanov, M. M. Korshunov

Institutions: Siberian Federal University, Krasnoyarsk Scientific Center, Institute of Physics

Language: English

Topic: Iron-based superconductors research

Subfield: Electronic, Optical and Magnetic Materials

Field: Materials Science

Domain: Physical Sciences

Open Access status: bronze

OpenAlex ID: W4406324536

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