Superconducting d-wave stripes in cuprates: Valence bond order coexisting with nodal quasiparticles

Matthias Vojta and Oliver Rösch
Phys. Rev. B 77, 094504 – Published 6 March 2008

Abstract

We point out that unidirectional bond-centered charge-density-wave states in cuprates involve electronic order in both s- and d-wave channels, with nonlocal Coulomb repulsion suppressing the s-wave component. The resulting bond-charge-density wave, coexisting with superconductivity, is compatible with recent photoemission and tunneling data and as well as neutron-scattering measurements, once long-range order is destroyed by slow fluctuations or glassy disorder. In particular, the real-space structure of d-wave stripes is consistent with the scanning-tunneling-microscopy measurements on both underdoped Bi2Sr2CaCu2O8+δ and Ca2xNaxCuO2Cl2 of Kohsaka et al. [Science 315, 1380 (2007)].

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  • Received 8 January 2008

DOI:https://doi.org/10.1103/PhysRevB.77.094504

©2008 American Physical Society

Authors & Affiliations

Matthias Vojta and Oliver Rösch

  • Institut für Theoretische Physik, Universität zu Köln, Zülpicher Straße 77, 50937 Köln, Germany

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Issue

Vol. 77, Iss. 9 — 1 March 2008

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