s± pairing near a Lifshitz transition

Mishra, Vivek; Scalapino, Douglas J.; Maier, Thomas A.

doi:10.1038/srep32078

Title: s± pairing near a Lifshitz transition

Abstract

Observations of robust superconductivity in some of the iron based superconductors in the vicinity of a Lifshitz point where a spin density wave instability is suppressed as the hole band drops below the Fermi energy raise questions for spin-fluctuation theories. In this paper we discuss spin-fluctuation pairing for a bilayer Hubbard model, which goes through such a Lifshitz transition. Our results show s± pairing with a transition temperature that peaks beyond the Lifshitz point and a gap function that has essentially the same magnitude but opposite sign on the incipient hole band as it does on the electron band that has a Fermi surface.

Authors:

Mishra, Vivek ^[1]; Scalapino, Douglas J. ^[2]; Maier, Thomas A. ^[3]

Univ. of Tennessee, Knoxville, TN (United States)
Univ. of California, Santa Barbara, CA (United States)
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Center for Nanophase Materials Science (CNMS)

Publication Date:: Fri Aug 26 00:00:00 EDT 2016

Research Org.:: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States). Joint Institute for Computational Sciences (JICS)

Sponsoring Org.:: USDOE Office of Science (SC); USDOE Laboratory Directed Research and Development (LDRD) Program

OSTI Identifier:: 1311242

Grant/Contract Number:: AC05-00OR22725

Resource Type:: Accepted Manuscript

Journal Name:: Scientific Reports

Additional Journal Information:: Journal Volume: 6; Journal ID: ISSN 2045-2322

Publisher:: Nature Publishing Group

Country of Publication:: United States

Language:: English

Subject:: 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY

Citation Formats


                    Mishra, Vivek, Scalapino, Douglas J., and Maier, Thomas A. s± pairing near a Lifshitz transition.  United States: N. p., 2016. 
Web.  doi:10.1038/srep32078.

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                    Mishra, Vivek, Scalapino, Douglas J., & Maier, Thomas A. s± pairing near a Lifshitz transition.  United States.  https://doi.org/10.1038/srep32078

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                    Mishra, Vivek, Scalapino, Douglas J., and Maier, Thomas A. Fri .  
"s± pairing near a Lifshitz transition".  United States.  https://doi.org/10.1038/srep32078.  https://www.osti.gov/servlets/purl/1311242.

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@article{osti_1311242,

  title        = {s± pairing near a Lifshitz transition},

  author       = {Mishra, Vivek and Scalapino, Douglas J. and Maier, Thomas A.},

  abstractNote = {Observations of robust superconductivity in some of the iron based superconductors in the vicinity of a Lifshitz point where a spin density wave instability is suppressed as the hole band drops below the Fermi energy raise questions for spin-fluctuation theories. In this paper we discuss spin-fluctuation pairing for a bilayer Hubbard model, which goes through such a Lifshitz transition. Our results show s± pairing with a transition temperature that peaks beyond the Lifshitz point and a gap function that has essentially the same magnitude but opposite sign on the incipient hole band as it does on the electron band that has a Fermi surface.},

  doi          = {10.1038/srep32078},

  journal      = {Scientific Reports},

  number       = ,

  volume       = 6,

  place        = {United States},

  year         = {Fri Aug 26 00:00:00 EDT 2016},

  month        = {Fri Aug 26 00:00:00 EDT 2016}

}

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Works referencing / citing this record:

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Title: s± pairing near a Lifshitz transition

Abstract

Citation Formats

The Challenge of Unconventional Superconductivity journal, April 2011

Unconventional Superconductivity with a Sign Reversal in the Order Parameter of LaFeAsO 1 − x F x journal, July 2008

Unconventional Pairing Originating from the Disconnected Fermi Surfaces of Superconducting LaFeAsO 1 − x F x journal, August 2008

Gap symmetry and structure of Fe-based superconductors journal, October 2011

Superconductivity in the iron selenide K x Fe 2 Se 2 ( 0 ≤ x ≤ 1.0 ) journal, November 2010

Structural, magnetic and electronic properties of the iron-chalcogenide A x Fe2−y Se2 (A=K, Cs, Rb, and Tl, etc.) superconductors journal, December 2011

Nodeless superconducting gap in AxFe2Se2 (A=K,Cs) revealed by angle-resolved photoemission spectroscopy journal, February 2011

Phase diagram and electronic indication of high-temperature superconductivity at 65 K in single-layer FeSe films journal, May 2013

Interface-induced superconductivity and strain-dependent spin density waves in FeSe/SrTiO3 thin films journal, May 2013

Bounds on nanoscale nematicity in single-layer FeSe / SrTiO 3 journal, March 2016

Superconductivity above 100 K in single-layer FeSe films on doped SrTiO3 journal, November 2014

First-principles study of FeSe epitaxial films on SrTiO 3 journal, November 2015

Electron pairing in the presence of incipient bands in iron-based superconductors journal, December 2015

Pair structure and the pairing interaction in a bilayer Hubbard model for unconventional superconductivity journal, November 2011

Variations of T c for changes in the spin-fluctuation spectral weight journal, October 1994

Nodeless d -wave pairing in a two-layer Hubbard model journal, March 1992

Pair Structure and the Pairing Interaction in a Bilayer Hubbard Model preprint, January 2011

Anisotropic resonance modes emerging in an antiferromagnetic superconducting state journal, September 2017

Phonon linewidth due to electron-phonon interactions with strong forward scattering in FeSe thin films on oxide substrates journal, August 2017

Possible high- T c superconductivity due to incipient narrow bands originating from hidden ladders in Ruddlesden-Popper compounds journal, November 2017

Wide applicability of high- T c pairing originating from coexisting wide and incipient narrow bands in quasi-one-dimensional systems journal, January 2018

Direct imaging of electron transfer and its influence on superconducting pairing at FeSe/SrTiO 3 interface journal, March 2018

Phonon linewidth due to electron-phonon interactions with strong forward scattering in FeSe thin films on oxide substrates text, January 2017

Possible high-$T_c$ superconductivity due to incipient narrow bands originating from hidden ladders in Ruddlesden-Popper compounds text, January 2017

Anisotropic resonance modes emerging in an antiferromagnetic superconducting state journal, September 2017

The Challenge of Unconventional Superconductivity
journal, April 2011

Unconventional Superconductivity with a Sign Reversal in the Order Parameter of ${LaFeAsO}_{1 - x} F_{x}$
journal, July 2008

Unconventional Pairing Originating from the Disconnected Fermi Surfaces of Superconducting ${LaFeAsO}_{1 - x} F_{x}$
journal, August 2008

Gap symmetry and structure of Fe-based superconductors
journal, October 2011

Superconductivity in the iron selenide $K_{x} {Fe}_{2} {Se}_{2}$ $(0 \leq x \leq 1.0)$
journal, November 2010

Structural, magnetic and electronic properties of the iron-chalcogenide A x Fe2−y Se2 (A=K, Cs, Rb, and Tl, etc.) superconductors
journal, December 2011

Nodeless superconducting gap in AxFe2Se2 (A=K,Cs) revealed by angle-resolved photoemission spectroscopy
journal, February 2011

Phase diagram and electronic indication of high-temperature superconductivity at 65 K in single-layer FeSe films
journal, May 2013

Interface-induced superconductivity and strain-dependent spin density waves in FeSe/SrTiO3 thin films
journal, May 2013

Bounds on nanoscale nematicity in single-layer $FeSe / {SrTiO}_{3}$
journal, March 2016

Superconductivity above 100 K in single-layer FeSe films on doped SrTiO3
journal, November 2014

First-principles study of FeSe epitaxial films on SrTiO ₃
journal, November 2015

Electron pairing in the presence of incipient bands in iron-based superconductors
journal, December 2015

Pair structure and the pairing interaction in a bilayer Hubbard model for unconventional superconductivity
journal, November 2011

Variations of $T_{c}$ for changes in the spin-fluctuation spectral weight
journal, October 1994

Nodeless d -wave pairing in a two-layer Hubbard model
journal, March 1992

Pair Structure and the Pairing Interaction in a Bilayer Hubbard Model
preprint, January 2011

Anisotropic resonance modes emerging in an antiferromagnetic superconducting state
journal, September 2017

Phonon linewidth due to electron-phonon interactions with strong forward scattering in FeSe thin films on oxide substrates
journal, August 2017

Possible high- $T_{c}$ superconductivity due to incipient narrow bands originating from hidden ladders in Ruddlesden-Popper compounds
journal, November 2017

Wide applicability of high- $T_{c}$ pairing originating from coexisting wide and incipient narrow bands in quasi-one-dimensional systems
journal, January 2018

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Phonon linewidth due to electron-phonon interactions with strong forward scattering in FeSe thin films on oxide substrates
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Possible high-$T_c$ superconductivity due to incipient narrow bands originating from hidden ladders in Ruddlesden-Popper compounds
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Anisotropic resonance modes emerging in an antiferromagnetic superconducting state
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