Spin-Density Wave Fermi Surface Reconstruction in UnderdopedYBa2Cu3O6+x

2009/02/16 by N. Harrison
Physics and Astronomy · #Advanced Condensed Matter Physics #Condensed matter physics #Fermi Gamma-ray Space Telescope #Fermi surface #Geometry #Magnetic properties of thin films #Physics #Physics of Superconductivity and Magnetism #Quantum mechanics #Quasiparticle #Scattering #Spin (aerodynamics) #Superconductivity #Surface (topology) #cond-mat.str-el #cond-mat.supr-con

paper · pdf · doi:10.1103/physrevlett.102.206405

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arxiv created 2009/02/16 · openalex publication_date 2009/05/20 · arxiv updated 2015/05/12 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

We consider the reconstruction expected for the Fermi surface of underdoped YBa₂Cu₃O_6+x in the case of a collinear spin-density wave with a characteristic vector Q=(\ensuremathπ[1\ifmmode±\else\textpm\fi2\ensuremathδ],\ensuremathπ), assuming an incommensurability \ensuremathδ\ensuremath≈0.06 similar to that found in recent neutron scattering experiments. A Fermi surface possibly consistent with the multiple observed quantum oscillation frequencies is obtained. From the low band masses expected using this model as compared with experiment, a uniform enhancement of the quasiparticle effective mass over the Fermi surface by a factor of \ensuremath≈7 is indicated. Further predictions of the Fermi surface topology are made, which may potentially be tested by experiment to indicate the relevance of this model to underdoped YBa₂Cu₃O_6+x.

Citations

• Theory of Fermi-surface pockets and correlation effects in underdopedYBa2Cu3O6.5
• Quantum oscillations and the Fermi surface in an underdoped high-Tc superconductor
• Electron pockets in the Fermi surface of hole-doped high-Tc superconductors