Enhanced Fermi surface nesting in superconducting BaFe${}_2$(As${}_{1-x}$P${}_x$)${}_2$ revealed by de Haas-van Alphen effect

Abstract

The three-dimensional Fermi surface morphology of superconducting BaFe_2(As_0.37}P_0.63)_2 with T_c=9K, is determined using the de Haas-van Alphen effect (dHvA). The inner electron pocket has a similar area and k_z interplane warping to the observed hole pocket, revealing that the Fermi surfaces are geometrically well nested in the (π,π) direction. These results are in stark contrast to the Fermiology of the non-superconducting phosphides (x=1), and therefore suggests an important role for nesting in pnictide superconductivity.

5 pages, 4 figures

References in corpus (11)

• LaFeAsO${}_{1-x}$F${}_x$: A low carrier density superconductor near itinerant magnetism
• Magnetism, superconductivity, and pairing symmetry in Fe-based superconductors
• Is LaO${}_{1-x}$F${}_x$FeAs an electron-phonon superconductor ?
• Origin of the ~150 K Anomaly in LaOFeAs; Competing Antiferromagnetic Superexchange Interactions, Frustration, and Structural Phase Transition
• Multiband magnetism and superconductivity in Fe-based compounds
• Electronic structure of the iron-based superconductor LaOFeP
• Fermi surface of superconducting LaFePO determined by quantum oscillations
• Origin of Gap Anisotropy in Spin Fluctuation Models of the Fe-pnictides
• Quantum oscillations in the parent pnictide BaFe${}_2$As${}_2$ : itinerant electrons in the reconstructed state
• Three- to Two-Dimensional Transition of the Electronic Structure in CaFe2As2 - parent compound for an iron arsenic high temperature superconductor
• Fermi surface of SrFe${}_2$P${}_2$ determined by de Haas-van Alphen effect

Cited by in corpus (6)

• High-temperature superconductivity in iron-based materials
• Electron-Hole Asymmetry in Superconductivity of Pnictides Originated from the Observed Rigid Chemical Potential Shift
• Superconductivity-induced optical anomaly in an iron arsenide
• Anisotropic quasiparticle lifetimes in Fe-based superconductors
• Extended Drude model and role of interband transitions in the mid-infrared spectra of pnictides
• Elastic and electronic properties of PbO-type FeSe1-xTex (x = 0 - 1.0): A first-principles study