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Title: Nodeless High- T c Superconductivity in the Highly Overdoped CuO 2 Monolayer

Journal Article · · Physical Review Letters
 [1];  [2];  [3];  [4]
  1. Boston College, Chestnut Hill, MA (United States); Chinese Academy of Sciences (CAS), Beijing (China)
  2. Chinese Academy of Sciences (CAS), Beijing (China); Julius-Maximilians-Univ. Würzburg (Germany)
  3. Chinese Academy of Sciences (CAS), Beijing (China); Collaborative Innovation Center of Quantum Matter, Beijing (China); Univ. of Chinese Academy of Sciences, Beijing (China)
  4. Boston College, Chestnut Hill, MA (United States)

We study the electronic structure and superconductivity in a CuO2 monolayer grown recently on the d-wave cuprate superconductor Bi2Sr2CaCu2O8+δ. Density functional theory calculations indicate a significant charge transfer across the interface such that the CuO2 monolayer is heavily overdoped into the hole-rich regime yet inaccessible in bulk cuprates. We show that both the Cu dx2–y2 and d3z2–r2 orbitals become important and the Fermi surface contains one electron and one hole pocket associated with the two orbitals, respectively. Constructing a minimal correlated two-orbital model for the eg complex, we show that the spin-orbital exchange interactions produce a nodeless superconductor with extended s-wave pairing symmetry and a pairing energy gap comparable to the bulk d-wave gap, in agreement with recent experiments. Here, the findings point to a direction of realizing new high-Tc superconductors in ozone grown transition-metal-oxide monolayer heterostructures.

Research Organization:
Boston College, Chestnut Hill, MA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES); National Science Foundation (NSF)
Grant/Contract Number:
FG02-99ER45747; PHY-1066293
OSTI ID:
1610432
Alternate ID(s):
OSTI ID: 1483921
Journal Information:
Physical Review Letters, Vol. 121, Issue 22; ISSN 0031-9007
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 24 works
Citation information provided by
Web of Science

References (55)

Generalized Gradient Approximation Made Simple journal October 1996
Origin of the material dependence of T c in the single-layered cuprates journal February 2012
Nodal and nodeless gap in proximity-induced superconductivity: Application to monolayer CuO 2 on a Bi 2 Sr 2 CaCu 2 O 8 + δ substrate journal September 2017
Unraveling the Nature of Charge Excitations in La 2 CuO 4 with Momentum-Resolved Cu K -Edge Resonant Inelastic X-Ray Scattering journal October 2010
Magnetism, superconductivity, and pairing symmetry in iron-based superconductors journal October 2008
Interface-Induced High-Temperature Superconductivity in Single Unit-Cell FeSe Films on SrTiO 3 journal March 2012
The Jahn-Teller effect and magnetism: transition metal compounds journal April 1982
Near-degeneracy of several pairing channels in multiorbital models for the Fe pnictides journal February 2009
Flux phases in the t - J model journal October 1992
Proximity-induced superconductivity in monolayer CuO 2 on cuprate substrates journal November 2016
d 3 z 2 r 2 orbital in high- T c cuprates: Excitonic spectrum, metal-insulator phase diagram, optical conductivity, and orbital character of doped holes journal July 2011
Imaging the Impact of Single Oxygen Atoms on Superconducting Bi2+ySr2-yCaCu2O8+x journal July 2012
Multiband Gutzwiller wave functions for general on-site interactions journal March 1998
Electron Correlation and Spin Density Wave Order in Iron Pnictides journal August 2010
Pairing Symmetry and Flux Quantization in a Tricrystal Superconducting Ring of Y Ba 2 Cu 3 O 7 δ journal July 1994
Effective Hamiltonian for the superconducting Cu oxides journal March 1988
Ab initiomolecular dynamics for liquid metals journal January 1993
Extended Hubbard model of superconductivity driven by charge fluctuations in iron pnictides journal October 2011
Phase diagram and electronic indication of high-temperature superconductivity at 65 K in single-layer FeSe films journal May 2013
Interfacial mode coupling as the origin of the enhancement of Tc in FeSe films on SrTiO3 journal November 2014
Orbital-selective Mott transition in multiband systems: Slave-spin representation and dynamical mean-field theory journal November 2005
Effective single-band models for the high- T c cuprates. II. Role of apical oxygen journal April 1996
Two-dimensional topological superconducting phases emerged from d-wave superconductors in proximity to antiferromagnets journal May 2017
Pairing symmetry in cuprate superconductors journal October 2000
Strong Coupling Theory for Superconducting Iron Pnictides journal January 2009
Functional Renormalization-Group Study of the Pairing Symmetry and Pairing Mechanism of the FeAs-Based High-Temperature Superconductor journal January 2009
Two types of s -wave pairing due to magnetic and orbital fluctuations in the two-dimensional 16-band d p model for iron-based superconductors journal February 2010
Random-phase-approximation analysis of orbital- and magnetic-fluctuation-mediated superconductivity in a two-band Hubbard model journal January 1994
High-Spin to Low-Spin and Orbital Polarization Transitions in Multiorbital Mott Systems journal September 2007
Efficiency of ab-initio total energy calculations for metals and semiconductors using a plane-wave basis set journal July 1996
Possible highT c superconductivity in the Ba?La?Cu?O system journal June 1986
Unconventional Superconductivity with a Sign Reversal in the Order Parameter of LaFeAsO 1 x F x journal July 2008
Slave-boson mean-field theory of the Mott transition in the two-band Hubbard model journal November 2005
Carriers binding to excitons: Crystal-field excitations in doped Mott-Hubbard insulators journal September 1993
Special points for Brillouin-zone integrations journal June 1976
Virtual electric quadrupole fluctuations: A mechanism for high T c journal May 1989
Efficient iterative schemes for ab initio total-energy calculations using a plane-wave basis set journal October 1996
A Cud-d excitation model for the pairing in the high-T c cuprates journal September 1988
Competition between crystal field splitting and Hund’s rule coupling in two-orbital magnetic metal-insulator transitions journal February 2012
Direct Observation of High-Temperature Superconductivity in One-Unit-Cell FeSe Films journal January 2014
Nodeless pairing in superconducting copper-oxide monolayer films on Bi 2 Sr 2 CaCu 2 O 8+δ journal August 2016
Superconductivity proximate to antiferromagnetism in a copper-oxide monolayer grown on Bi 2 Sr 2 CaCu 2 O 8 + δ journal January 2018
Rotationally invariant slave-boson formalism and momentum dependence of the quasiparticle weight journal October 2007
Two-Orbital Model Explains the Higher Transition Temperature of the Single-Layer Hg-Cuprate Superconductor Compared to That of the La-Cuprate Superconductor journal July 2010
Strong Correlations from Hund’s Coupling journal April 2013
Electronic origin of high-temperature superconductivity in single-layer FeSe superconductor journal January 2012
Electronic orders in multiorbital Hubbard models with lifted orbital degeneracy journal April 2016
Doping a Mott insulator: Physics of high-temperature superconductivity journal January 2006
Magnetic structure of V 2 O 3 in the insulating phase journal November 1978
Pairing Symmetry in a Two-Orbital Exchange Coupling Model of Oxypnictides journal November 2008
Proximity Effect in Gold-Coated Y B a 2 C u 3 O 7 δ Films Studied by Scanning Tunneling Spectroscopy journal January 2004
Correlating Off-Stoichiometric Doping and Nanoscale Electronic Inhomogeneity in the High- T c Superconductor Bi 2 Sr 2 CaCu 2 O 8 + δ journal February 2007
Apical oxygen ions and the electronic structure of the high- T c cuprates journal May 1992
Visualizing the evolution from the Mott insulator to a charge-ordered insulator in lightly doped cuprates journal August 2016
Orbital-Fluctuation-Mediated Superconductivity in Iron Pnictides: Analysis of the Five-Orbital Hubbard-Holstein Model journal April 2010

Cited By (6)

Skyrmionic chains and lattices in s + i d superconductors journal February 2020
Superconductivity in a unique type of copper oxide journal May 2019
Two pairing domes as Cu 2 + varies to Cu 3 + journal June 2019
Orbital Symmetry and Orbital Excitations in High-Tc Superconductors journal May 2019
Ni-based transition-metal trichalcogenide monolayer: a strongly correlated quadruple-layer graphene text January 2018
Orbital Symmetry and Orbital Excitations in High-$T_c$ Superconductors text January 2019

Figures / Tables (3)