Fermi surface in La-based cuprate superconductors from Compton scattering imaging

Abstract

Compton scattering provides invaluable information on the underlying Fermi surface (FS) and is a powerful tool complementary to angle-resolved photoemission spectroscopy and quantum oscillation measurements. Here we perform high-resolution Compton scattering measurements for La_{2-x}Sr_{x}CuO_{4} with x=0.08 (Tc=20K) at 300K and 150K, and image the momentum distribution function in the two-dimensional Brillouin zone. We find that the observed images cannot be reconciled with the conventional hole-like FS believed so far. Instead, our data imply that the FS is strongly deformed by the underlying nematicity in each CuO_2 plane, but the bulk FSs recover the fourfold symmetry. We also find an unusually strong temperature dependence of the momentum distribution function, which may originate from the pseudogap formation in the presence of the reconstructed FSs due to the underlying nematicity. Additional measurements for x=0.15 and 0.30 at 300K suggest similar FS deformation with weaker nematicity, which nearly vanishes at x=0.30.

36 pages, 19 figures

References in corpus (33)

• Angle-resolved photoemission spectroscopy of the cuprate superconductors
• The pseudogap in high-temperature superconductors: an experimental survey
• How to detect fluctuating order in the high-temperature superconductors
• Electronic Liquid Crystal Phases of a Doped Mott Insulator
• Destruction of the Fermi Surface in Underdoped High Tc Superconductors
• Electronic liquid crystal state in the high-temperature superconductor YBCO(6.45)
• d-wave superconductivity and Pomeranchuk instability in the two-dimensional Hubbard model
• Electrical Resistivity Anisotropy from Self-Organized One-Dimensionality in High-Temperature Superconductors
• Change of carrier density at the pseudogap critical point of a cuprate superconductor
• Reconstruction of Band Structure Induced by Electronic Nematicity in an FeSe Superconductor
• Doping Evolution of the Underlying Fermi Surface in La2-xSrxCuO4
• Thermodynamic evidence for nematic phase transition at the onset of pseudogap in YBa${}_2$Cu${}_3$O${}_y$
• Charge density wave fluctuations in La2-xSrxCuO4 and their competition with superconductivity
• Instability toward Formation of Quasi-One-Dimensional Fermi Surface in Two-Dimensional t-J Model
• Possible Quasi-One-Dimensional Fermi Surface in La_{2-x}Sr_{x}CuO_4
• Static and dynamic spin correlations in the spin-glass phase of slightly-doped La_{2-x}Sr_xCuO_4
• Charge-Stripe Ordering From Local Octahedral Tilts: Underdoped and Superconducting La2-xSrxCuO4 (0 < x < 0.30)
• Quantum Oscillations in Hole-Doped Cuprates
• Pseudogap, Superconducting Gap, and Fermi Arc in High-Tc Cuprates Revealed by Angle-Resolved Photoemission Spectroscopy
• Energy gaps in the failed high-Tc superconductor La1.875Ba0.125CuO4
• Two types of nematicity in the phase diagram of the cuprate superconductor YBa${}_2$Cu${}_3$O${}_y$
• Distinct doping dependences of the pseudogap and superconducting gap La${}_{2-x}$Sr${}_x$CuO${}_4$ cuprate superconductors
• Mean-Field Analysis of Intra-Unit-Cell Order in the Emery Model of the CuO${}_2$ Plane
• Fermi surface reconstruction and drop of Hall number due to spiral antiferromagnetism in high-$T_c$ cuprates
• Nematic Fluctuations in the Cuprate Superconductor Bi${}_2$Sr${}_2$CaCu${}_2$O${}_{8+\delta }$
• Magnetic Excitation of t-J Model with Quasi-One-Dimensional Fermi Surface -- Possible Relevance to LSCO Systems
• Structural instability associated with the tilting of CuO6 octahedra in La2-xSrxCuO4
• A Novel 2D Folding Technique for Enhancing Fermi Surface Signatures in the Momentum Density: Application to Compton Scattering Data from an Al-3at%Li Disordered Alloy
• Self-masking of spontaneous symmetry breaking in layer materials
• Magnetic excitations in La-based cuprate superconductors: slave-boson mean-field analysis of the two-dimensional t-J model
• Enhanced nematic fluctuations near an antiferromagnetic Mott insulator and possible application to high-$T_c$ cuprates
• Bulk Fermi surface and momentum density in heavily doped La${}_{2-x}$Sr${}_x$CuO${}_4$ using high resolution Compton scattering and positron annihilation spectroscopies
• Hall effect in cuprates with incommensurate spin-density wave

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