Multi-band mass enhancement towards critical doping in a pnictide superconductor

Moir, Camilla Margaret; Riggs, Scott Chandler; Galvis, Jose Augusto; Lian, Xiujun; Giraldo-Gallo, Paula; Chu, Jiun-Haw; Walmsley, Philip; Fisher, Ian Randal; Shekhter, Arkady; Boebinger, Gregory Scott

doi:10.1038/s41535-018-0144-x

Title: Multi-band mass enhancement towards critical doping in a pnictide superconductor

Abstract

Abstract Near critical doping, high-temperature superconductors exhibit multiple anomalies associated with enhanced electronic correlations and quantum criticality. Quasiparticle mass enhancement approaching optimal doping has been reported in quantum oscillation measurements in both cuprate and pnictide superconductors. Although the data are suggestive of enhanced interactions, the microscopic theory of quantum oscillation measurements near a quantum critical point is not yet firmly established. It is therefore desirable to have a direct thermodynamic measurement of quasiparticle mass. Here we report high-magnetic field measurements of heat capacity in the doped pnictide superconductor BaFe ₂ (As _{1− x} P _x ) ₂ . We observe saturation of the specific heat at high magnetic field in a broad doping range above optimal doping which enables a direct determination of the electronic density of states recovered when superconductivity is suppressed. Our measurements find a strong total mass enhancement in the Fermi pockets that superconduct. This mass enhancement extrapolates to a mass divergence at a critical doping of x = 0.28.

Authors:

Moir, Camilla Margaret; Riggs, Scott Chandler;

; Lian, Xiujun; Giraldo-Gallo, Paula; Chu, Jiun-Haw;

; Fisher, Ian Randal; Shekhter, Arkady; Boebinger, Gregory Scott

Publication Date:: Thu Feb 21 00:00:00 EST 2019

Research Org.:: SLAC National Accelerator Lab., Menlo Park, CA (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1619706

Alternate Identifier(s):: OSTI ID: 1526991

Grant/Contract Number:: DMR-1157490; AC02-76SF00515

Resource Type:: Published Article

Journal Name:: npj Quantum Materials

Additional Journal Information:: Journal Name: npj Quantum Materials Journal Volume: 4 Journal Issue: 1; Journal ID: ISSN 2397-4648

Publisher:: Nature Publishing Group

Country of Publication:: United Kingdom

Language:: English

Subject:: 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY

Citation Formats


                    Moir, Camilla Margaret, Riggs, Scott Chandler, Galvis, Jose Augusto, Lian, Xiujun, Giraldo-Gallo, Paula, Chu, Jiun-Haw, Walmsley, Philip, Fisher, Ian Randal, Shekhter, Arkady, and Boebinger, Gregory Scott. Multi-band mass enhancement towards critical doping in a pnictide superconductor.  United Kingdom: N. p., 2019. 
Web.  doi:10.1038/s41535-018-0144-x.

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                    Moir, Camilla Margaret, Riggs, Scott Chandler, Galvis, Jose Augusto, Lian, Xiujun, Giraldo-Gallo, Paula, Chu, Jiun-Haw, Walmsley, Philip, Fisher, Ian Randal, Shekhter, Arkady, & Boebinger, Gregory Scott. Multi-band mass enhancement towards critical doping in a pnictide superconductor.  United Kingdom.  https://doi.org/10.1038/s41535-018-0144-x

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                    Moir, Camilla Margaret, Riggs, Scott Chandler, Galvis, Jose Augusto, Lian, Xiujun, Giraldo-Gallo, Paula, Chu, Jiun-Haw, Walmsley, Philip, Fisher, Ian Randal, Shekhter, Arkady, and Boebinger, Gregory Scott. Thu .  
"Multi-band mass enhancement towards critical doping in a pnictide superconductor".  United Kingdom.  https://doi.org/10.1038/s41535-018-0144-x.

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@article{osti_1619706,

  title        = {Multi-band mass enhancement towards critical doping in a pnictide superconductor},

  author       = {Moir, Camilla Margaret and Riggs, Scott Chandler and Galvis, Jose Augusto and Lian, Xiujun and Giraldo-Gallo, Paula and Chu, Jiun-Haw and Walmsley, Philip and Fisher, Ian Randal and Shekhter, Arkady and Boebinger, Gregory Scott},

  abstractNote = {Abstract Near critical doping, high-temperature superconductors exhibit multiple anomalies associated with enhanced electronic correlations and quantum criticality. Quasiparticle mass enhancement approaching optimal doping has been reported in quantum oscillation measurements in both cuprate and pnictide superconductors. Although the data are suggestive of enhanced interactions, the microscopic theory of quantum oscillation measurements near a quantum critical point is not yet firmly established. It is therefore desirable to have a direct thermodynamic measurement of quasiparticle mass. Here we report high-magnetic field measurements of heat capacity in the doped pnictide superconductor BaFe 2 (As 1− x P x ) 2 . We observe saturation of the specific heat at high magnetic field in a broad doping range above optimal doping which enables a direct determination of the electronic density of states recovered when superconductivity is suppressed. Our measurements find a strong total mass enhancement in the Fermi pockets that superconduct. This mass enhancement extrapolates to a mass divergence at a critical doping of x  = 0.28.},

  doi          = {10.1038/s41535-018-0144-x},

  journal      = {npj Quantum Materials},

  number       = 1,

  volume       = 4,

  place        = {United Kingdom},

  year         = {Thu Feb 21 00:00:00 EST 2019},

  month        = {Thu Feb 21 00:00:00 EST 2019}

}

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Cited by: 3 works

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Figures / Tables:

Fig. 1: Specific heat divided by temperature, C/T, of BaFe₂(As_0.54P_0.46)₂ (T_c = 19.5 K). a Magnetic field dependence of C/T at 1.5 K. The gray curve indicates $\sqrt{H}$ behavior which is consistent with phenomenology associated with a superconducting gap with nodes. b Field dependence of C/T plotted against $\sqrt{H}$ atmore »

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Title: Multi-band mass enhancement towards critical doping in a pnictide superconductor

Abstract

Citation Formats

Figures / Tables:

Enhanced Fermi-Surface Nesting in Superconducting BaFe 2 ( As 1 − x P x ) 2 Revealed by the de Haas–van Alphen Effect journal, November 2010

Selective mass enhancement close to the quantum critical point in BaFe2(As1−x P x )2 journal, July 2017

Structural Quantum Criticality and Superconductivity in Iron-Based Superconductor Ba(Fe 1- x Co x ) 2 As 2 journal, February 2012

A Sharp Peak of the Zero-Temperature Penetration Depth at Optimal Composition in BaFe2(As1-xPx)2 journal, June 2012

Thermodynamic constraints on the amplitude of quantum oscillations journal, March 2017

Doping evolution of superconducting gaps and electronic densities of states in Ba(Fe 1−x Co x ) 2 As 2 iron pnictides journal, August 2010

Nodes in the gap structure of the iron arsenide superconductor Ba ( Fe 1 − x Co x ) 2 As 2 from c -axis heat transport measurements journal, August 2010

Scale-invariant magnetoresistance in a cuprate superconductor journal, August 2018

Flux Flow in d -Wave Superconductors: Low Temperature Universality and Scaling journal, August 1997

From quantum matter to high-temperature superconductivity in copper oxides journal, February 2015

Low-energy quasiparticles in high- T c cuprates journal, December 2002

Microscopic parameters from high-resolution specific heat measurements on superoptimally substituted BaFe 2 ( As 1 − x P x ) 2 single crystals journal, January 2016

Nodal superconducting-gap structure in ferropnictide superconductor BaFe2(As0.7P0.3)2 journal, March 2012

Holographic duality and the resistivity of strange metals journal, June 2014

Quasiparticle Mass Enhancement Close to the Quantum Critical Point in BaFe 2 ( As 1 − x P x ) 2 journal, June 2013

Strong pairbreaking in anisotropic superconductors journal, May 2010

Strong correlations, strong coupling, and s -wave superconductivity in hole-doped BaFe 2 As 2 single crystals journal, November 2016

Phenomenology of the normal state of Cu-O high-temperature superconductors journal, October 1989

Growth of BaFe 2 (As 1- x P x ) 2 Single Crystals (0≤ x ≤1) by Ba 2 As 3 /Ba 2 P 3 -Flux Method journal, October 2012

Angular-dependent upper critical field of overdoped Ba(Fe 1 − x Ni x ) 2 As 2 journal, March 2013

Specific-heat jump at the superconducting transition and the quantum critical nature of the normal state of pnictide superconductors journal, December 2009

Transport near a quantum critical point in BaFe2(As1−xPx)2 journal, January 2014

Evolution of the Fermi Surface of BaFe 2 ( As 1 − x P x ) 2 on Entering the Superconducting Dome journal, February 2010

Quasiparticle mass enhancement approaching optimal doping in a high-Tc superconductor journal, March 2015

Anomalous critical fields in quantum critical superconductors journal, December 2014

Ubiquitous signatures of nematic quantum criticality in optimally doped Fe-based superconductors journal, May 2016

Doping dependence of the specific heat of single-crystal BaFe 2 (As 1 − x P x ) 2 journal, May 2012

Nesting of electron and hole Fermi surfaces in nonsuperconducting BaFe 2 P 2 journal, June 2011

Experimental Constraints on the Theory of High-Tc Superconductivity journal, June 1992

Quantum oscillation studies of the Fermi surface of iron-pnictide superconductors journal, October 2011

Line nodes in the energy gap of superconducting BaFe 2 ( As 1 − x P x ) 2 single crystals as seen via penetration depth and thermal conductivity journal, June 2010

Doping Dependence of Heat Transport in the Iron-Arsenide Superconductor Ba ( Fe 1 − x Co x ) 2 As 2 : From Isotropic to a Strongly k -Dependent Gap Structure journal, February 2010

Enhanced Fermi-Surface Nesting in Superconducting ${BaFe}_{2} ({As}_{1 - x} P_{x})_{2}$ Revealed by the de Haas–van Alphen Effect
journal, November 2010

Selective mass enhancement close to the quantum critical point in BaFe2(As1−x P x )2
journal, July 2017

Structural Quantum Criticality and Superconductivity in Iron-Based Superconductor Ba(Fe _{1- x} Co _x ) ₂ As ₂
journal, February 2012

A Sharp Peak of the Zero-Temperature Penetration Depth at Optimal Composition in BaFe2(As1-xPx)2
journal, June 2012

Thermodynamic constraints on the amplitude of quantum oscillations
journal, March 2017

Doping evolution of superconducting gaps and electronic densities of states in Ba(Fe _1−x Co _x ) ₂ As ₂ iron pnictides
journal, August 2010

Nodes in the gap structure of the iron arsenide superconductor $Ba {({Fe}_{1 - x} {Co}_{x})}_{2} {As}_{2}$ from $c$ -axis heat transport measurements
journal, August 2010

Scale-invariant magnetoresistance in a cuprate superconductor
journal, August 2018

Flux Flow in $d$ -Wave Superconductors: Low Temperature Universality and Scaling
journal, August 1997

From quantum matter to high-temperature superconductivity in copper oxides
journal, February 2015

Low-energy quasiparticles in high- T c cuprates
journal, December 2002

Microscopic parameters from high-resolution specific heat measurements on superoptimally substituted ${BaFe}_{2} {({As}_{1 - x} P_{x})}_{2}$ single crystals
journal, January 2016

Nodal superconducting-gap structure in ferropnictide superconductor BaFe2(As0.7P0.3)2
journal, March 2012

Holographic duality and the resistivity of strange metals
journal, June 2014

Quasiparticle Mass Enhancement Close to the Quantum Critical Point in ${BaFe}_{2} ({As}_{1 - x} P_{x})_{2}$
journal, June 2013

Strong pairbreaking in anisotropic superconductors
journal, May 2010

Strong correlations, strong coupling, and $s$ -wave superconductivity in hole-doped ${BaFe}_{2} {As}_{2}$ single crystals
journal, November 2016

Phenomenology of the normal state of Cu-O high-temperature superconductors
journal, October 1989

Growth of BaFe ₂ (As _{1- x} P _x ) ₂ Single Crystals (0≤ x ≤1) by Ba ₂ As ₃ /Ba ₂ P ₃ -Flux Method
journal, October 2012

Angular-dependent upper critical field of overdoped Ba(Fe $_{1 - x}$ Ni $_{x}$ ) $_{2}$ As $_{2}$
journal, March 2013

Specific-heat jump at the superconducting transition and the quantum critical nature of the normal state of pnictide superconductors
journal, December 2009

Transport near a quantum critical point in BaFe2(As1−xPx)2
journal, January 2014

Evolution of the Fermi Surface of ${BaFe}_{2} ({As}_{1 - x} P_{x})_{2}$ on Entering the Superconducting Dome
journal, February 2010

Quasiparticle mass enhancement approaching optimal doping in a high-Tc superconductor
journal, March 2015

Anomalous critical fields in quantum critical superconductors
journal, December 2014

Ubiquitous signatures of nematic quantum criticality in optimally doped Fe-based superconductors
journal, May 2016

Doping dependence of the specific heat of single-crystal BaFe $_{2}$ (As $_{1 - x}$ P $_{x}$ ) $_{2}$
journal, May 2012

Nesting of electron and hole Fermi surfaces in nonsuperconducting BaFe $_{2}$ P $_{2}$
journal, June 2011

Experimental Constraints on the Theory of High-Tc Superconductivity
journal, June 1992

Quantum oscillation studies of the Fermi surface of iron-pnictide superconductors
journal, October 2011

Line nodes in the energy gap of superconducting ${BaFe}_{2} {({As}_{1 - x} P_{x})}_{2}$ single crystals as seen via penetration depth and thermal conductivity
journal, June 2010

Doping Dependence of Heat Transport in the Iron-Arsenide Superconductor $Ba ({Fe}_{1 - x} {Co}_{x})_{2} {As}_{2}$ : From Isotropic to a Strongly $k$ -Dependent Gap Structure
journal, February 2010