Fragile charge order in the non-superconducting ground state of the underdoped high temperature superconductors

Abstract

The normal state in the hole underdoped copper oxide superconductors has proven to be a source of mystery for decades. The measurement of a small Fermi surface by quantum oscillations on suppression of superconductivity by high applied magnetic fields, together with complementary spectroscopic measurements in the hole underdoped copper oxide superconductors, point to a nodal electron pocket from charge order in YBa2Cu3O6+x. Here we report quantum oscillation measurements in the closely related stoichiometric material YBa2Cu4O8, which reveal similar Fermi surface properties to YBa2Cu3O6+x, despite an absence of charge order signatures in the same spectroscopic techniques such as x-ray diffraction that revealed signatures of charge order in YBa2Cu3O6+x. Fermi surface reconstruction in YBa2Cu4O8 is suggested to occur from magnetic field enhancement of charge order that is rendered fragile in zero magnetic fields because of its potential unconventional symmetry, and/or its occurrence as a subsidiary to more robust underlying electronic correlations.

arXiv commentin PNAS online July 21, 2015

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Cited by in corpus (8)

• Single reconstructed Fermi surface pocket in an underdoped single layer cuprate superconductor
• Fermi liquid behavior of the in-plane resistivity in the pseudogap state of YBa_2Cu_4O_8
• Inverse correlation between quasiparticle mass and Tc in a cuprate high-Tc superconductor
• Magnetic oscillations measure interlayer coupling in cuprate superconductors
• The phase diagram of the underdoped cuprates at high magnetic field
• Microscopic evidence for the intra-unit-cell electronic nematicity inside the pseudogap phase in YBa${}_2$Cu${}_4$O${}_8$
• Slow quantum oscillations without fine-grained Fermi Surface Reconstruction in Cuprate Superconductors
• Random field disorder and charge order driven quantum oscillations in cuprates