Proposal to determine the Fermi-surface topology of a doped iron-based superconductor using bulk-sensitive Fourier-transform Compton scattering

2010/02/07 by Yung Jui Wang, Hsin Lin, B. Barbiellini +5 · 8 citations
Materials Science · Physics and Astronomy · #Antiferromagnetism #Compton scattering #Condensed matter physics #Doping #Fermi Gamma-ray Space Telescope #Fermi surface #Fourier transform #Iron-based superconductors research #Momentum (technical analysis) #Physics #Physics of Superconductivity and Magnetism #Quantum mechanics #Rare-earth and actinide compounds #Scattering #Spin (aerodynamics) #Superconductivity #cond-mat.mtrl-sci #cond-mat.str-el

paper · pdf · doi:10.1103/physrevb.81.092501

published in Physical Review B 81(9) (American Physical Society) · 4 pages, 6 figures, accepted in Physical Review B

arxiv created 2010/02/07 · openalex publication_date 2010/03/02 · arxiv updated 2010/03/16 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

We have carried out first-principles calculations of the Compton scattering spectra to demonstrate that the filling of the hole Fermi surface in LaO_1\ensuremath-xF_xFeAs produces a distinct signature in the Fourier-transformed Compton spectrum when the momentum transfer vector lies along the [100] direction. We thus show how the critical concentration x_c, where hole Fermi-surface pieces are filled up and the superconductivity mediated by antiferromagnetic spin fluctuations is expected to be suppressed, can be obtained in a bulk-sensitive manner.

Citations

• Problems with reconciling density functional theory calculations with experiment in ferropnictides
• Correlated Electronic Structure ofLaO1−xFxFeAs
• Neutron-scattering study of the oxypnictide superconductorLaFeAsO0.87F0.13
• Raising Bi-O Bands above the Fermi Energy Level of Hole-DopedBi2Sr2CaCu2O8+δand Other Cuprate Superconductors
• ARPES studies of the electronic structure of LaOFe(P,As)