Enhanced surface superconductivity in Ba(Fe 0.95 Co 0.05 ) 2 As 2

doi:10.1063/1.5133647

Title: Enhanced surface superconductivity in Ba(Fe _0.95 Co _0.05 ) ₂ As ₂

Authors:

^[1];

^[1]; Tam, Gordon N. ^[2];

^[2];

^[1]

Department of Physics, Laboratory of Atomic and Solid State Physics, Cornell University, Ithaca, New York 14853, USA
Department of Physics, University of Florida, Gainesville, Florida 32611, USA

Publication Date:: 2020-02-10

Sponsoring Org.:: USDOE

OSTI Identifier:: 1599259

Grant/Contract Number:: FG02-86ER45268

Resource Type:: Publisher's Accepted Manuscript

Journal Name:: Applied Physics Letters

Additional Journal Information:: Journal Name: Applied Physics Letters Journal Volume: 116 Journal Issue: 6; Journal ID: ISSN 0003-6951

Publisher:: American Institute of Physics

Country of Publication:: United States

Language:: English

Citation Formats


                    Parzyck, Christopher T., Faeth, Brendan D., Tam, Gordon N., Stewart, Gregory R., and Shen, Kyle M. Enhanced surface superconductivity in Ba(Fe 0.95 Co 0.05 ) 2 As 2.  United States: N. p., 2020. 
        Web.  doi:10.1063/1.5133647.

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                    Parzyck, Christopher T., Faeth, Brendan D., Tam, Gordon N., Stewart, Gregory R., & Shen, Kyle M. Enhanced surface superconductivity in Ba(Fe 0.95 Co 0.05 ) 2 As 2.  United States.  doi:10.1063/1.5133647.

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                    Parzyck, Christopher T., Faeth, Brendan D., Tam, Gordon N., Stewart, Gregory R., and Shen, Kyle M. Mon .  
        "Enhanced surface superconductivity in Ba(Fe 0.95 Co 0.05 ) 2 As 2".  United States.  doi:10.1063/1.5133647.

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@article{osti_1599259,

  title        = {Enhanced surface superconductivity in Ba(Fe 0.95 Co 0.05 ) 2 As 2},

  author       = {Parzyck, Christopher T. and Faeth, Brendan D. and Tam, Gordon N. and Stewart, Gregory R. and Shen, Kyle M.},

  abstractNote = {},

  doi          = {10.1063/1.5133647},

  journal      = {Applied Physics Letters},

  number       = 6,

  volume       = 116,

  place        = {United States},

  year         = {2020},

  month        = {2}

}

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DOI: 10.1063/1.5133647

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Title: Enhanced surface superconductivity in Ba(Fe 0.95 Co 0.05 ) 2 As 2

Citation Formats

2 × 2 structure and charge inhomogeneity at the surface of superconducting BaFe 2 − x Co x As 2 ( x = 0 – 0.32 ) journal, March 2010

Surface Geometric and Electronic Structures of BaFe 2 As 2 ( 001 ) journal, August 2009

High-resolution, hard x-ray photoemission investigation of BaFe 2 As 2 : Moderate influence of the surface and evidence for a low degree of Fe 3 d – As 4 p hybridization of electronic states near the Fermi energy journal, March 2009

Different effects of Ni and Co substitution on the transport properties of BaFe 2 As 2 journal, February 2011

Enhanced superconductivity in surface-electron-doped iron pnictide Ba(Fe1.94Co0.06)2As2 journal, August 2016

Surface Adatom Conductance Filtering in Scanning Tunneling Spectroscopy of Co-doped BaFe 2 As 2 Iron Pnictide Superconductors journal, September 2012

Rashba Spin-Splitting Control at the Surface of the Topological Insulator Bi 2 Se 3 journal, October 2011

Nanoscale superconducting-gap variations and lack of phase separation in optimally doped BaFe 1.86 Co 0.14 As 2 journal, June 2009

Role of Antiferromagnetic Ordering in the ( 1 × 2 ) Surface Reconstruction of Ca ( Fe 1 − x Co x ) 2 As 2 journal, February 2014

Transport properties and asymmetric scattering in Ba 1 − x K x Fe 2 As 2 single crystals journal, November 2011

Bulk and surface low-energy excitations in Y Ba 2 Cu 3 O 7 − δ studied by high-resolution angle-resolved photoemission spectroscopy journal, January 2007

Pnictogen height as a possible switch between high- T c nodeless and low- T c nodal pairings in the iron-based superconductors journal, June 2009

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Cleavage surfaces of the BaFe 2 − x Co x As 2 and Fe y Se 1 − x Te x superconductors: A combined STM plus LEED study journal, October 2009

High-resolution photoemission from a tunable quantum well: Cu(111)/Na journal, July 1997

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Pressure versus Concentration Tuning of the Superconductivity in Ba(Fe 1- x Co x ) 2 As 2 journal, December 2010

Bandwidth and Fermi surface of iron oxypnictides: Covalency and sensitivity to structural changes journal, August 2008

Band structure and charge doping effects of the potassium-adsorbed FeSe / SrTiO 3 system journal, February 2016

In situ doping control of the surface of high-temperature superconductors journal, June 2008

Resistivity of Ba(Fe 1 − x Co x ) 2 As 2 : Evidence for a broad composition range of non-Fermi-liquid behavior journal, October 2013

Fermi arcs in a doped pseudospin-1/2 Heisenberg antiferromagnet journal, June 2014

Observation of a d-wave gap in electron-doped Sr2IrO4 journal, October 2015

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Loss of nodal quasiparticle integrity in underdoped YBa2Cu3O6+x journal, October 2010

Effects of Surface Electron Doping and Substrate on the Superconductivity of Epitaxial FeSe Films journal, February 2016

Superconductivity across Lifshitz transition and anomalous insulating state in surface K–dosed (Li 0.8 Fe 0.2 OH)FeSe journal, July 2017

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Title: Enhanced surface superconductivity in Ba(Fe _0.95 Co _0.05 ) ₂ As ₂

$\sqrt{2} \times \sqrt{2}$ structure and charge inhomogeneity at the surface of superconducting ${BaFe}_{2 - x} {Co}_{x} {As}_{2}$ $(x = 0 - 0.32)$
journal, March 2010

Surface Geometric and Electronic Structures of ${BaFe}_{2} {As}_{2} (001)$
journal, August 2009

High-resolution, hard x-ray photoemission investigation of ${BaFe}_{2} {As}_{2}$ : Moderate influence of the surface and evidence for a low degree of $Fe 3 d - As 4 p$ hybridization of electronic states near the Fermi energy
journal, March 2009

Different effects of Ni and Co substitution on the transport properties of BaFe $_{2}$ As $_{2}$
journal, February 2011

Enhanced superconductivity in surface-electron-doped iron pnictide Ba(Fe1.94Co0.06)2As2
journal, August 2016

Surface Adatom Conductance Filtering in Scanning Tunneling Spectroscopy of Co-doped ${BaFe}_{2} {As}_{2}$ Iron Pnictide Superconductors
journal, September 2012

Rashba Spin-Splitting Control at the Surface of the Topological Insulator ${Bi}_{2} {Se}_{3}$
journal, October 2011

Nanoscale superconducting-gap variations and lack of phase separation in optimally doped ${BaFe}_{1.86} {Co}_{0.14} {As}_{2}$
journal, June 2009

Role of Antiferromagnetic Ordering in the ( $1 \times 2$ ) Surface Reconstruction of $Ca {({Fe}_{1 - x} {Co}_{x})}_{2} {As}_{2}$
journal, February 2014

Transport properties and asymmetric scattering in Ba $_{1 - x}$ K $_{x}$ Fe $_{2}$ As $_{2}$ single crystals
journal, November 2011

Bulk and surface low-energy excitations in $Y {Ba}_{2} {Cu}_{3} O_{7 - δ}$ studied by high-resolution angle-resolved photoemission spectroscopy
journal, January 2007

Pnictogen height as a possible switch between high- $T_{c}$ nodeless and low- $T_{c}$ nodal pairings in the iron-based superconductors
journal, June 2009

Measurement of a Sign-Changing Two-Gap Superconducting Phase in Electron-Doped $Ba ({Fe}_{1 - x} {Co}_{x})_{2} {As}_{2}$ Single Crystals Using Scanning Tunneling Spectroscopy
journal, February 2011

Cleavage surfaces of the ${BaFe}_{2 - x} {Co}_{x} {As}_{2}$ and ${Fe}_{y} {Se}_{1 - x} {Te}_{x}$ superconductors: A combined STM plus LEED study
journal, October 2009

High-resolution photoemission from a tunable quantum well: Cu(111)/Na
journal, July 1997

Overlayer resonance and quantum well state of $Cs ∕ Cu (111)$ studied with angle-resolved photoemission, LEED, and first-principles calculations
journal, April 2007

Pressure versus Concentration Tuning of the Superconductivity in Ba(Fe _{1- x} Co _x ) ₂ As ₂
journal, December 2010

Bandwidth and Fermi surface of iron oxypnictides: Covalency and sensitivity to structural changes
journal, August 2008

Band structure and charge doping effects of the potassium-adsorbed $FeSe / {SrTiO}_{3}$ system
journal, February 2016

In situ doping control of the surface of high-temperature superconductors
journal, June 2008

Resistivity of Ba(Fe $_{1 - x}$ Co $_{x}$ ) $_{2}$ As $_{2}$ : Evidence for a broad composition range of non-Fermi-liquid behavior
journal, October 2013

Fermi arcs in a doped pseudospin-1/2 Heisenberg antiferromagnet
journal, June 2014

Observation of a d-wave gap in electron-doped Sr2IrO4
journal, October 2015

Superconductivity below 20 K in heavily electron-doped surface layer of FeSe bulk crystal
journal, April 2016

Momentum and temperature dependence of renormalization effects in the high-temperature superconductor $Y {Ba}_{2} {Cu}_{3} O_{7 - δ}$
journal, August 2007

Loss of nodal quasiparticle integrity in underdoped YBa2Cu3O6+x
journal, October 2010

Effects of Surface Electron Doping and Substrate on the Superconductivity of Epitaxial FeSe Films
journal, February 2016

Superconductivity across Lifshitz transition and anomalous insulating state in surface K–dosed (Li _0.8 Fe _0.2 OH)FeSe
journal, July 2017

Uniaxial versus hydrostatic pressure-induced phase transitions in CaFe $_{2}$ As $_{2}$ and BaFe $_{2}$ As $_{2}$
journal, March 2012

Surface terminations and layer-resolved tunneling spectroscopy of the 122 iron pnictide superconductors
journal, April 2019