Two pairing domes as Cu2+ varies to Cu3+

Thomas Maier, T. Berlijn, and D. J. Scalapino
Phys. Rev. B 99, 224515 – Published 27 June 2019
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Abstract

Using a tight-binding two-orbital (dx2y2, d3z2r2) model and a random phase approximation treatment of the spin-fluctuation pairing vertex, we calculate the pairing strengths for a cuprate model in which the hole doping varies from Cu2+ to Cu3+. We find two domes of pairing strength: one corresponding to the traditional low hole doping regime and the other to the extremely overdoped regime discussed by Geballe and Marezio [Physica C 469, 680 (2009)]. In the overdoped regime we find that there is significant pairing strength in both the d-wave and s± channels.

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  • Received 11 September 2018
  • Revised 11 April 2019

DOI:https://doi.org/10.1103/PhysRevB.99.224515

©2019 American Physical Society

Physics Subject Headings (PhySH)

Condensed Matter, Materials & Applied Physics

Authors & Affiliations

Thomas Maier1,2, T. Berlijn1,2, and D. J. Scalapino3

  • 1Computational Sciences and Engineering Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
  • 2Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
  • 3Department of Physics, University of California, Santa Barbara, California 93106-9530, USA

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Issue

Vol. 99, Iss. 22 — 1 June 2019

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