RKKY interaction in the spin-density-wave phase of iron-based superconductors

2011/09/21 by Alireza Akbari, Ilya Eremin, Peter Thalmeier · 28 citations
Materials Science · Physics and Astronomy · #Condensed matter physics #Ferromagnetism #Iron-based superconductors research #Materials science #Phase (matter) #Physics #Quantum mechanics #RKKY interaction #Spin (aerodynamics) #Spin density wave #Superconductivity #cond-mat.str-el #cond-mat.supr-con

paper · pdf · doi:10.1103/physrevb.84.134513

published in Physical Review B 84(13) (American Physical Society) · 8 pages, 8 figures

arxiv created 2011/09/21 · openalex publication_date 2011/10/13 · arxiv updated 2011/10/14 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

Using the multiband model we analyze the Ruderman-Kittel-Kasuya-Yosida (RKKY) interaction between the magnetic impurities in layered ferropnictide superconductors. In the normal state the interaction is spin isotropic and is dominated by the nesting features of the electron and hole bands separated by the antiferromagnetic (AF) momentum, Q_AF. In the AF state the RKKY interaction maps into an effective anisotropic XXZ-type Heisenberg exchange model. The anisotropy originates from the breaking of the spin-rotational symmetry induced by the AF order and its strength depends on the size of the AF gap and the structure of the folded Fermi surface. We discuss our results in connection with recent experiments.

Citations

• Unconventional Superconductivity with a Sign Reversal in the Order Parameter ofLaFeAsO1−xFx
• Theory of the excitonic spin-density-wave state in iron pnictides
• Theory of itinerant magnetic excitations in the spin-density-wave phase of iron-based superconductors
• Strong coupling of Sm and Fe magnetism in SmFeAsO as revealed by magnetic x-ray scattering
• Doping evolution of itinerant magnetic fluctuations in Fe-based pnictides
• Multiband magnetism and superconductivity in Fe-based compounds
• Theory of magnetic excitations in iron-based layered superconductors
• Electronic structure of optimally doped pnictide Ba0.6K0.4Fe2As2: a comprehensive angle-resolved photoemission spectroscopy investigation
• A Theory of Metallic Ferro- and Antiferromagnetism on Zener's Model

Cited by

• SDW driven "magnetic breakdown" in a d-wave altermagnet KV₂Se₂O

Related

• RKKY interaction mediated by a spin-polarized 2D electron gas with Rashba and altermagnetic coupling
• Mass modification of itinerant carriers in RKKY oscillations induced by finite-range exchange interactions
• Non-RKKY oscillations of exchange coupling in magnetic multilayers
• Topological Superconductivity and Majorana Fermions in RKKY Systems
• Zero-mode anomaly in the RKKY interaction on bipartite lattices