D -wave superconductivity in the presence of nearest-neighbor Coulomb repulsion

M. Jiang; U. R. Hähner; T. C. Schulthess; T. A. Maier

doi:10.1103/PhysRevB.97.184507

D -wave superconductivity in the presence of nearest-neighbor Coulomb repulsion

M. Jiang, U. R. Hähner, T. C. Schulthess, T. A. Maier

Computational Sciences & Engineering Div

Research output: Contribution to journal › Article › peer-review

20 Scopus citations

Abstract

Dynamic cluster quantum Monte Carlo calculations for a doped two-dimensional extended Hubbard model are used to study the stability and dynamics of d-wave pairing when a nearest-neighbor Coulomb repulsion V is present in addition to the on-site Coulomb repulsion U. We find that d-wave pairing and the superconducting transition temperature T_c are only weakly suppressed as long as V does not exceed U/2. This stability is traced to the strongly retarded nature of pairing that allows the d-wave pairs to minimize the repulsive effect of V. When V approaches U/2, large momentum charge fluctuations are found to become important and to give rise to a more rapid suppression of d-wave pairing and T_c than for smaller V.

Original language	English
Article number	184507
Journal	Physical Review B
Volume	97
Issue number	18
DOIs	https://doi.org/10.1103/PhysRevB.97.184507
State	Published - May 17 2018

Funding

We acknowledge useful discussions with D. J. Scalapino. The work of T.A.M. was supported by the Scientific Discovery through the Advanced Computing (SciDAC) Program funded by the US Department of Energy, Office of Science, Advanced Scientific Computing Research and Basic Energy Sciences, Division of Materials Sciences and Engineering. This research used resources of the Oak Ridge Leadership Computing Facility at the Oak Ridge National Laboratory, which is supported by the Office of Science of the U.S. Department of Energy under Contract No. DE-AC05-00OR22725.

Funders	Funder number
U.S. Department of Energy	DE-AC05-00OR22725
Office of Science
Advanced Scientific Computing Research
Oak Ridge National Laboratory
Division of Materials Sciences and Engineering

Access to Document

10.1103/PhysRevB.97.184507

Cite this

@article{b3a12ad1ec044d55bb910c7ebac895f0,

title = "D -wave superconductivity in the presence of nearest-neighbor Coulomb repulsion",

abstract = "Dynamic cluster quantum Monte Carlo calculations for a doped two-dimensional extended Hubbard model are used to study the stability and dynamics of d-wave pairing when a nearest-neighbor Coulomb repulsion V is present in addition to the on-site Coulomb repulsion U. We find that d-wave pairing and the superconducting transition temperature Tc are only weakly suppressed as long as V does not exceed U/2. This stability is traced to the strongly retarded nature of pairing that allows the d-wave pairs to minimize the repulsive effect of V. When V approaches U/2, large momentum charge fluctuations are found to become important and to give rise to a more rapid suppression of d-wave pairing and Tc than for smaller V.",

author = "M. Jiang and H{\"a}hner, {U. R.} and Schulthess, {T. C.} and Maier, {T. A.}",

note = "Publisher Copyright: {\textcopyright} 2018 American Physical Society.",

year = "2018",

month = may,

day = "17",

doi = "10.1103/PhysRevB.97.184507",

language = "English",

volume = "97",

journal = "Physical Review B",

issn = "2469-9950",

publisher = "American Physical Society",

number = "18",

}

TY - JOUR

T1 - D -wave superconductivity in the presence of nearest-neighbor Coulomb repulsion

AU - Jiang, M.

AU - Hähner, U. R.

AU - Schulthess, T. C.

AU - Maier, T. A.

PY - 2018/5/17

Y1 - 2018/5/17

N2 - Dynamic cluster quantum Monte Carlo calculations for a doped two-dimensional extended Hubbard model are used to study the stability and dynamics of d-wave pairing when a nearest-neighbor Coulomb repulsion V is present in addition to the on-site Coulomb repulsion U. We find that d-wave pairing and the superconducting transition temperature Tc are only weakly suppressed as long as V does not exceed U/2. This stability is traced to the strongly retarded nature of pairing that allows the d-wave pairs to minimize the repulsive effect of V. When V approaches U/2, large momentum charge fluctuations are found to become important and to give rise to a more rapid suppression of d-wave pairing and Tc than for smaller V.

AB - Dynamic cluster quantum Monte Carlo calculations for a doped two-dimensional extended Hubbard model are used to study the stability and dynamics of d-wave pairing when a nearest-neighbor Coulomb repulsion V is present in addition to the on-site Coulomb repulsion U. We find that d-wave pairing and the superconducting transition temperature Tc are only weakly suppressed as long as V does not exceed U/2. This stability is traced to the strongly retarded nature of pairing that allows the d-wave pairs to minimize the repulsive effect of V. When V approaches U/2, large momentum charge fluctuations are found to become important and to give rise to a more rapid suppression of d-wave pairing and Tc than for smaller V.

UR - http://www.scopus.com/inward/record.url?scp=85047339516&partnerID=8YFLogxK

U2 - 10.1103/PhysRevB.97.184507

DO - 10.1103/PhysRevB.97.184507

M3 - Article

AN - SCOPUS:85047339516

SN - 2469-9950

VL - 97

JO - Physical Review B

JF - Physical Review B

IS - 18

M1 - 184507

ER -

D -wave superconductivity in the presence of nearest-neighbor Coulomb repulsion

Abstract

Funding

Access to Document

Other files and links

Fingerprint

Cite this