Compensated electron and hole pockets in an underdoped high Tc superconductor

Abstract

We report quantum oscillations in the underdoped high Tc YBCO over a wide range in magnetic field 28<B<85 T corresponding to ~12 oscillations, enabling the Fermi surface topology to be mapped to high resolution. As earlier reported by Sebastian et al., we find a Fermi surface comprising multiple pockets, as revealed by the additional distinct quantum oscillation frequencies and harmonics reported in this work. We find the originally reported broad low frequency Fourier peak at 535 T to be clearly resolved into three separate peaks at 460 T, 532 T and 602 T. Our increased resolution and angle-resolved measurements identify these frequencies to originate from two similarly sized pockets with greatly contrasting degrees of interlayer corrugation. The spectrally dominant frequency originates from a pocket (α) that is almost ideally two-dimensional in form. In contrast, the newly resolved weaker adjacent spectral features originate from a deeply corrugated pocket (γ). On comparison with band structure, the d-wave symmetry of the interlayer dispersion locates the minimally corrugated αpocket at the 'nodal' point where holes are located in a translational symmetry-broken scenario, and the significantly corrugated γpocket at the 'antinodal' point in the Brillouin zone, where electrons are located in a translational symmetry-broken scenario. Translational symmetry breaking by an SDW is suggested from the strong suppression of Zeeman splitting for the spectrally dominant pocket, additional evidence for which is provided from the harmonics we resolve in the present experiments. Given the similarity in αand γpocket sizes, their opposite carrier type and the previous report of a diverging effective mass, we discuss the possibility of a secondary Fermi surface instability at low dopings of the excitonic insulator type, associated with the metal-insulator QCP.

Expanded abstract, added two new figures to establish the enhanced resolution of the current measurements and provide further support for earlier reported suppression of Zeeman splitting.

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Cited by in corpus (39)

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• Quantum Oscillations in Hole-Doped Cuprates
• Novel magnetic order in pseudogap state of high Tc copper oxides superconductors
• Normal-state nodal electronic structure in underdoped high-Tc copper oxides
• Protected nodal electron pocket from multiple-Q ordering in underdoped high temperature superconductors
• Angle-dependence of quantum oscillations in YBa2Cu3O6.59 shows free spin behaviour of quasiparticles
• Quantum oscillations from nodal bilayer magnetic breakdown in the underdoped high temperature superconductor YBa2Cu3O6+x
• Fermi-surface reconstruction in a smectic phase of a high temperature superconductor
• Quasi-2D Fermi surface in the anomalous superconductor UTe2
• Shape resonance for the anisotropic superconducting gaps near a Lifshitz transition: the effect of electron hopping between layers
• Extended Kohler${}^{,}$s Rule of Magnetoresistance
• Fermi surface reconstruction in hole-doped t-J models without long-range antiferromagnetic order
• Fermi Surface of the Electron-doped Cuprate Superconductor Nd_{2-x}Ce_xCuO_{4} Probed by High-Field Magnetotransport
• Fermi Surface Reconstruction and Quantum Oscillations in Underdoped YBa${}_2$Cu${}_3$O${}_{7-x}$ Modeled in a Single Bilayer with Mirror Symmetry Broken by Charge Density Waves
• Chemical potential oscillations from a single nodal pocket in the underdoped high-Tc superconductor YBa2Cu3O6+x
• Probing the Fermi surface and magnetotransport properties in MoAs${}_2$
• Theory of High-Tc Superconductivity: Transition Temperature
• Theory of High-Tc Superconductivity: Accurate Predictions of Tc
• Composite Operator Method analysis of the underdoped cuprates puzzle
• Coherent c-axis transport in the underdoped cuprate superconductor YBCO
• Quantum oscillations in a bilayer with broken mirror symmetry: a minimal model for YBa${}_2$Cu${}_3$O${}_{6+\delta }$
• Quantum phase transitions of antiferromagnets and the cuprate superconductors
• Shape resonance at a Lifshitz transition for high temperature superconductivity in multiband superconductors
• Magnetic oscillations measure interlayer coupling in cuprate superconductors
• Fragile charge order in the non-superconducting ground state of the underdoped high temperature superconductors
• 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
• Quantum oscillations in electron doped high temperature superconductors
• Magnetic oscillations of in-plane conductivity in quasi-two-dimensional metals
• Singlet versus triplet particle-hole condensates in quantum oscillations in cuprates
• Electron-like Fermi surface and in-plane anisotropy due to chain states in YBa${}_2$Cu${}_3$O${}_{7-\delta }$ superconductors
• Conditions for orbital selective altermagnetism in Sr${}_2$RuO${}_4$: tight binding model, similarities with cuprates and implications on superconductivity
• Slow quantum oscillations without fine-grained Fermi Surface Reconstruction in Cuprate Superconductors
• Spin Zeros and the Origin of Fermi Surface Reconstruction in the Cuprates
• Quantum Oscillation as Diagnostics of Pseudogap State in Underdoped Cuprates
• Fermi surfaces and quantum oscillations in underdoped high-Tc superconductors YBa2Cu3O6.5 and YBa2Cu4O8
• Particle-hole symmetry breaking in the pseudogap state of Pb0.55Bi1.5Sr1.6La0.4CuO6+d: A quantum-chemical perspective
• Slow Oscillations of the Transverse Magnetoresistance in HoTe3