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Title: Two pairing domes as Cu 2 + varies to Cu 3 +

Abstract

Using a tight-binding two-orbital (dx2–y2, d3z2–r2) 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+. Here, 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.

Authors:
ORCiD logo [1]; ORCiD logo [1];  [2]
+ Show Author Affiliations
  1. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  2. Univ. of California, Santa Barbara, CA (United States)
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
OSTI Identifier:
1530110
Alternate Identifier(s):
OSTI ID: 1529701
Grant/Contract Number:  
AC05-00OR22725
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review B
Additional Journal Information:
Journal Volume: 99; Journal Issue: 22; Journal ID: ISSN 2469-9950
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY

Citation Formats

Maier, Thomas A., Berlijn, Tom, and Scalapino, D. J. Two pairing domes as Cu2+ varies to Cu3+. United States: N. p., 2019. Web. doi:10.1103/PhysRevB.99.224515.
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Maier, Thomas A., Berlijn, Tom, & Scalapino, D. J. Two pairing domes as Cu2+ varies to Cu3+. United States. https://doi.org/10.1103/PhysRevB.99.224515
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Maier, Thomas A., Berlijn, Tom, and Scalapino, D. J. Thu . "Two pairing domes as Cu2+ varies to Cu3+". United States. https://doi.org/10.1103/PhysRevB.99.224515. https://www.osti.gov/servlets/purl/1530110.
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@article{osti_1530110,
title = {Two pairing domes as Cu2+ varies to Cu3+},
author = {Maier, Thomas A. and Berlijn, Tom and Scalapino, D. J.},
abstractNote = {Using a tight-binding two-orbital (dx2–y2, d3z2–r2) 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+. Here, 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.},
doi = {10.1103/PhysRevB.99.224515},
journal = {Physical Review B},
number = 22,
volume = 99,
place = {United States},
year = {Thu Jun 27 00:00:00 EDT 2019},
month = {Thu Jun 27 00:00:00 EDT 2019}
}
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Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
https://doi.org/10.1103/PhysRevB.99.224515
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Citation Metrics:
Cited by: 17 works
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Figures / Tables:

FIG. 1 FIG. 1: The two-orbital tight binding bandstructure for Cumore » $^{2+x}$ dopings of x = 0.15 and 0.85. For the underdoped case (a), a single band with dominant d$_{x^2}$$_{−y^2}$ orbital character crosses the Fermi energy. In the extremely overdoped system (b) with a reduced Cu apical O spacing, two bands with d$_{x^2}$$_{−y^2}$and d$_{3z^2}$$_{−r^2}$ orbital weights cross the Fermi energy. The orbital weights for d$_{x^2}$$_{−y^2}$ and d$_{3z^2}$$_{−r^2}$ are indicated by orange and blue, respectively.« less
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