Magnetic quantum oscillations and multiple holon pockets in the underdoped cuprateYBa2Cu3O6+y

2010/01/08 by Wei Chen, O. P. Sushkov, Oleg P. Sushkov +1
Physics and Astronomy · #Advanced Condensed Matter Physics #Condensed matter physics #Cuprate #Divergence (linguistics) #Doping #Magnetic properties of thin films #Neutron #Neutron scattering #Physics #Physics of Superconductivity and Magnetism #Quantum #Quantum mechanics #Scattering #Spin (aerodynamics) #Thermodynamics #cond-mat.supr-con

paper · pdf · doi:10.1103/physrevb.82.060511

published as Phys. Rev. B 82, 060511(R) (2010) · 4.2 pages, submitted to PRL

arxiv created 2010/01/08 · openalex publication_date 2010/08/20 · arxiv updated 2015/05/14 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

We show that lightly doped YBa₂Cu₃O_6+y has multiple holon pockets with different areas, which lead to multiple frequencies of magnetic quantum oscillations. Using neutron-scattering data on incommensurate spin ordering we determine these areas, which yields frequencies in good agreement with experiments. Divergence of the effective mass observed in magnetic quantum oscillations indicates a quantum phase transition at the oxygen content y\ensuremath≈0.48. We argue that the transition is the onset of quasistatic incommensurate magnetic order predicted by theory and observed in neutron scattering.

Citations

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