Energy dependence of the spin excitation anisotropy in uniaxial-strained BaFe1.9Ni0.1As2

Song, Yu; Lu, Xingye; Abernathy, Douglas L.; Tam, David W.; Niedziela, Jennifer L.; Tian, Wei; Si, Qimiao; Dai, Pengcheng; Luo, Huiqian

doi:10.1103/PhysRevB.92.180504

Title: Energy dependence of the spin excitation anisotropy in uniaxial-strained BaFe_1.9Ni_0.1As₂

Abstract

In this study, we use inelastic neutron scattering to study the temperature and energy dependence of the spin excitation anisotropy in uniaxial-strained electron-doped iron pnictide BaFe_1.9Ni_0.1As₂ near optimal superconductivity (T_c = 20K). Our work has been motivated by the observation of in-plane resistivity anisotropy in the paramagnetic tetragonal phase of electron-underdoped iron pnictides under uniaxial pressure, which has been attributed to a spin-driven Ising-nematic state or orbital ordering. Here we show that the spin excitation anisotropy, a signature of the spin-driven Ising-nematic phase, exists for energies below 60 meV in uniaxial-strained BaFe_1.9Ni_0.1As₂. Since this energy scale is considerably larger than the energy splitting of the d_xz and d_yz bands of uniaxial-strained Ba(Fe_1–xCox)₂As₂ near optimal superconductivity, spin Ising-nematic correlations are likely the driving force for the resistivity anisotropy and associated electronic nematic correlations.

Authors:

Song, Yu ^[1]; Lu, Xingye ^[2]; Abernathy, Douglas L. ^[3]; Tam, David W. ^[1]; Niedziela, Jennifer L. ^[3]; Tian, Wei ^[3]; Si, Qimiao ^[1]; Dai, Pengcheng ^[1]; Luo, Huiqian ^[4]

Rice Univ., Houston, TX (United States)
Rice Univ., Houston, TX (United States); Chinese Academy of Sciences (CAS), Beijing (China)
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Chinese Academy of Sciences (CAS), Beijing (China)

Publication Date:: Fri Nov 06 00:00:00 EST 2015

Research Org.:: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1238741

Alternate Identifier(s):: OSTI ID: 1225398

Grant/Contract Number:: AC05-00OR22725

Resource Type:: Accepted Manuscript

Journal Name:: Physical Review. B, Condensed Matter and Materials Physics

Additional Journal Information:: Journal Volume: 92; Journal Issue: 18; Journal ID: ISSN 1098-0121

Publisher:: American Physical Society (APS)

Country of Publication:: United States

Language:: English

Subject:: 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS

Citation Formats


                    Song, Yu, Lu, Xingye, Abernathy, Douglas L., Tam, David W., Niedziela, Jennifer L., Tian, Wei, Si, Qimiao, Dai, Pengcheng, and Luo, Huiqian. Energy dependence of the spin excitation anisotropy in uniaxial-strained BaFe1.9Ni0.1As2.  United States: N. p., 2015. 
Web.  doi:10.1103/PhysRevB.92.180504.

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                    Song, Yu, Lu, Xingye, Abernathy, Douglas L., Tam, David W., Niedziela, Jennifer L., Tian, Wei, Si, Qimiao, Dai, Pengcheng, & Luo, Huiqian. Energy dependence of the spin excitation anisotropy in uniaxial-strained BaFe1.9Ni0.1As2.  United States.  https://doi.org/10.1103/PhysRevB.92.180504

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                    Song, Yu, Lu, Xingye, Abernathy, Douglas L., Tam, David W., Niedziela, Jennifer L., Tian, Wei, Si, Qimiao, Dai, Pengcheng, and Luo, Huiqian. Fri .  
"Energy dependence of the spin excitation anisotropy in uniaxial-strained BaFe1.9Ni0.1As2".  United States.  https://doi.org/10.1103/PhysRevB.92.180504.  https://www.osti.gov/servlets/purl/1238741.

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@article{osti_1238741,

  title        = {Energy dependence of the spin excitation anisotropy in uniaxial-strained BaFe1.9Ni0.1As2},

  author       = {Song, Yu and Lu, Xingye and Abernathy, Douglas L. and Tam, David W. and Niedziela, Jennifer L. and Tian, Wei and Si, Qimiao and Dai, Pengcheng and Luo, Huiqian},

  abstractNote = {In this study, we use inelastic neutron scattering to study the temperature and energy dependence of the spin excitation anisotropy in uniaxial-strained electron-doped iron pnictide BaFe1.9Ni0.1As2 near optimal superconductivity (Tc = 20K). Our work has been motivated by the observation of in-plane resistivity anisotropy in the paramagnetic tetragonal phase of electron-underdoped iron pnictides under uniaxial pressure, which has been attributed to a spin-driven Ising-nematic state or orbital ordering. Here we show that the spin excitation anisotropy, a signature of the spin-driven Ising-nematic phase, exists for energies below 60 meV in uniaxial-strained BaFe1.9Ni0.1As2. Since this energy scale is considerably larger than the energy splitting of the dxz and dyz bands of uniaxial-strained Ba(Fe1–xCox)2As2 near optimal superconductivity, spin Ising-nematic correlations are likely the driving force for the resistivity anisotropy and associated electronic nematic correlations.},

  doi          = {10.1103/PhysRevB.92.180504},

  journal      = {Physical Review. B, Condensed Matter and Materials Physics},

  number       = 18,

  volume       = 92,

  place        = {United States},

  year         = {Fri Nov 06 00:00:00 EST 2015},

  month        = {Fri Nov 06 00:00:00 EST 2015}

}

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Title: Energy dependence of the spin excitation anisotropy in uniaxial-strained BaFe1.9Ni0.1As2

Abstract

Citation Formats

Nematic Fermi Fluids in Condensed Matter Physics journal, August 2010

In-plane electronic anisotropy of underdoped ‘122’ Fe-arsenide superconductors revealed by measurements of detwinned single crystals journal, September 2011

Iron-Based Layered Superconductor La[O 1- x F x ]FeAs ( x = 0.05−0.12) with T c = 26 K journal, March 2008

Superconductivity in iron compounds journal, December 2011

Antiferromagnetic order and spin dynamics in iron-based superconductors journal, August 2015

Magnetic order close to superconductivity in the iron-based layered LaO1-xF x FeAs systems journal, May 2008

Neutron-Diffraction Measurements of Magnetic Order and a Structural Transition in the Parent BaFe 2 As 2 Compound of FeAs-Based High-Temperature Superconductors journal, December 2008

Character of the structural and magnetic phase transitions in the parent and electron-doped BaFe 2 As 2 compounds journal, April 2011

Neutron scattering study of the interplay between structure and magnetism in Ba ( Fe 1 − x Co x ) 2 As 2 journal, April 2009

Anomalous Suppression of the Orthorhombic Lattice Distortion in Superconducting Ba ( Fe 1 − x Co x ) 2 As 2 Single Crystals journal, February 2010

Coexistence and Competition of the Short-Range Incommensurate Antiferromagnetic Order with the Superconducting State of BaFe 2 − x Ni x As 2 journal, June 2012

Avoided Quantum Criticality and Magnetoelastic Coupling in BaFe 2 − x Ni x As 2 journal, June 2013

In-Plane Resistivity Anisotropy in an Underdoped Iron Arsenide Superconductor journal, August 2010

Uniaxial-strain mechanical detwinning of CaFe 2 As 2 and BaFe 2 As 2 crystals: Optical and transport study journal, May 2010

Divergent Nematic Susceptibility in an Iron Arsenide Superconductor journal, August 2012

Effect of Disorder on the Resistivity Anisotropy Near the Electronic Nematic Phase Transition in Pure and Electron-Doped BaFe 2 As 2 journal, June 2014

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

Nematic Susceptibility of Hole-Doped and Electron-Doped Ba F e 2 As 2 Iron-Based Superconductors from Shear Modulus Measurements journal, January 2014

Ising transition in frustrated Heisenberg models journal, January 1990

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Nematic orders in iron-based superconductors journal, November 2012

What drives nematic order in iron-based superconductors? journal, January 2014

Preemptive nematic order, pseudogap, and orbital order in the iron pnictides journal, January 2012

Manifestations of nematic degrees of freedom in the magnetic, elastic, and superconducting properties of the iron pnictides journal, July 2012

Ferro-Orbital Order and Strong Magnetic Anisotropy in the Parent Compounds of Iron-Pnictide Superconductors journal, December 2009

Spin-orbital frustrations and anomalous metallic state in iron-pnictide superconductors journal, February 2009

Orbital ordering induces structural phase transition and the resistivity anomaly in iron pnictides journal, December 2009

Orbital order and spontaneous orthorhombicity in iron pnictides journal, September 2010

Conductivity Anisotropy in the Antiferromagnetic State of Iron Pnictides journal, November 2010

Nematic spin correlations in the tetragonal state of uniaxial-strained BaFe2-xNixAs2 journal, July 2014

Existence of Orbital Order and its Fluctuation in Superconducting Ba ( Fe 1 − x Co x ) 2 As 2 Single Crystals Revealed by X-ray Absorption Spectroscopy journal, November 2013

Symmetry-breaking orbital anisotropy observed for detwinned Ba(Fe1-xCox)2As2 above the spin density wave transition journal, April 2011

Symmetry breaking via orbital-dependent reconstruction of electronic structure in detwinned NaFeAs journal, February 2012

Electronic nematic correlations in the stress-free tetragonal state of BaFe 2 − x Ni x As 2 journal, October 2015

Effect of Uniaxial Strain on the Structural and Magnetic Phase Transitions in BaFe 2 As 2 journal, February 2012

Evolution of antiferromagnetic susceptibility under uniaxial pressure in Ba( Fe 1 − x Co x ) 2 As 2 journal, June 2014

Spin excitations in the nematic phase and the metallic stripe spin-density wave phase of iron pnictides journal, February 2015

Nature of magnetic excitations in superconducting BaFe1.9Ni0.1As2 journal, March 2012

Short-range cluster spin glass near optimal superconductivity in Ba Fe 2 − x Ni x As 2 journal, July 2014

High-resolution measurements of the thermal expansion of superconducting Co-doped BaFe 2 As 2 journal, June 2009

Strange Inter-Layer Properties of Ba(Fe 1- x Co x ) 2 As 2 Appearing in Ultrasonic Measurements journal, November 2013

Normal-state spin dynamics and temperature-dependent spin-resonance energy in optimally doped BaFe1.85Co0.15As2 journal, December 2009

Doping dependence of spin dynamics in electron-doped Ba ( Fe 1 − x Co x ) 2 As 2 journal, August 2010

Electron doping evolution of the anisotropic spin excitations in BaFe 2 − x Ni x As 2 journal, July 2012

High-temperature superconductivity in iron pnictides and chalcogenides journal, March 2016

Uniaxial strain control of spin-polarization in multicomponent nematic order of BaFe2As2 journal, March 2018

Local orthorhombic lattice distortions in the paramagnetic tetragonal phase of superconducting NaFe1−xNixAs journal, August 2018

Nematic magnetoelastic effect contrasted between Ba ( Fe 1 − x Co x ) 2 As 2 and FeSe journal, February 2016

Strain-Induced Spin-Nematic State and Nematic Susceptibility Arising from 2 × 2 Fe Clusters in KFe 0.8 Ag 1.2 Te 2 journal, December 2019

High Temperature Superconductivity in Iron Pnictides and Chalcogenides text, January 2016

Title: Energy dependence of the spin excitation anisotropy in uniaxial-strained BaFe_1.9Ni_0.1As₂

Nematic Fermi Fluids in Condensed Matter Physics
journal, August 2010

In-plane electronic anisotropy of underdoped ‘122’ Fe-arsenide superconductors revealed by measurements of detwinned single crystals
journal, September 2011

Iron-Based Layered Superconductor La[O _1- _x F _x ]FeAs ( x = 0.05−0.12) with T _c = 26 K
journal, March 2008

Superconductivity in iron compounds
journal, December 2011

Antiferromagnetic order and spin dynamics in iron-based superconductors
journal, August 2015

Magnetic order close to superconductivity in the iron-based layered LaO1-xF x FeAs systems
journal, May 2008

Neutron-Diffraction Measurements of Magnetic Order and a Structural Transition in the Parent ${BaFe}_{2} {As}_{2}$ Compound of FeAs-Based High-Temperature Superconductors
journal, December 2008

Character of the structural and magnetic phase transitions in the parent and electron-doped BaFe $_{2}$ As $_{2}$ compounds
journal, April 2011

Neutron scattering study of the interplay between structure and magnetism in $Ba {({Fe}_{1 - x} {Co}_{x})}_{2} {As}_{2}$
journal, April 2009

Anomalous Suppression of the Orthorhombic Lattice Distortion in Superconducting $Ba ({Fe}_{1 - x} {Co}_{x})_{2} {As}_{2}$ Single Crystals
journal, February 2010

Coexistence and Competition of the Short-Range Incommensurate Antiferromagnetic Order with the Superconducting State of ${BaFe}_{2 - x} {Ni}_{x} {As}_{2}$
journal, June 2012

Avoided Quantum Criticality and Magnetoelastic Coupling in ${BaFe}_{2 - x} {Ni}_{x} {As}_{2}$
journal, June 2013

In-Plane Resistivity Anisotropy in an Underdoped Iron Arsenide Superconductor
journal, August 2010

Uniaxial-strain mechanical detwinning of ${CaFe}_{2} {As}_{2}$ and ${BaFe}_{2} {As}_{2}$ crystals: Optical and transport study
journal, May 2010

Divergent Nematic Susceptibility in an Iron Arsenide Superconductor
journal, August 2012

Effect of Disorder on the Resistivity Anisotropy Near the Electronic Nematic Phase Transition in Pure and Electron-Doped ${BaFe}_{2} {As}_{2}$
journal, June 2014

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

Nematic Susceptibility of Hole-Doped and Electron-Doped ${Ba F e}_{2} {As}_{2}$ Iron-Based Superconductors from Shear Modulus Measurements
journal, January 2014

Ising transition in frustrated Heisenberg models
journal, January 1990

Iron pnictides as a new setting for quantum criticality
journal, March 2009

Nematic orders in iron-based superconductors
journal, November 2012

What drives nematic order in iron-based superconductors?
journal, January 2014

Preemptive nematic order, pseudogap, and orbital order in the iron pnictides
journal, January 2012

Manifestations of nematic degrees of freedom in the magnetic, elastic, and superconducting properties of the iron pnictides
journal, July 2012

Ferro-Orbital Order and Strong Magnetic Anisotropy in the Parent Compounds of Iron-Pnictide Superconductors
journal, December 2009

Spin-orbital frustrations and anomalous metallic state in iron-pnictide superconductors
journal, February 2009

Orbital ordering induces structural phase transition and the resistivity anomaly in iron pnictides
journal, December 2009

Orbital order and spontaneous orthorhombicity in iron pnictides
journal, September 2010

Conductivity Anisotropy in the Antiferromagnetic State of Iron Pnictides
journal, November 2010

Nematic spin correlations in the tetragonal state of uniaxial-strained BaFe2-xNixAs2
journal, July 2014

Existence of Orbital Order and its Fluctuation in Superconducting $Ba ({Fe}_{1 - x} {Co}_{x})_{2} {As}_{2}$ Single Crystals Revealed by X-ray Absorption Spectroscopy
journal, November 2013

Symmetry-breaking orbital anisotropy observed for detwinned Ba(Fe1-xCox)2As2 above the spin density wave transition
journal, April 2011

Symmetry breaking via orbital-dependent reconstruction of electronic structure in detwinned NaFeAs
journal, February 2012

Electronic nematic correlations in the stress-free tetragonal state of ${BaFe}_{2 - x} {Ni}_{x} {As}_{2}$
journal, October 2015

Effect of Uniaxial Strain on the Structural and Magnetic Phase Transitions in ${BaFe}_{2} {As}_{2}$
journal, February 2012

Evolution of antiferromagnetic susceptibility under uniaxial pressure in Ba( ${Fe}_{1 - x} {Co}_{x}$ ) $_{2} {As}_{2}$
journal, June 2014

Spin excitations in the nematic phase and the metallic stripe spin-density wave phase of iron pnictides
journal, February 2015

Nature of magnetic excitations in superconducting BaFe1.9Ni0.1As2
journal, March 2012

Short-range cluster spin glass near optimal superconductivity in $Ba {Fe}_{2 - x} {Ni}_{x} {As}_{2}$
journal, July 2014

High-resolution measurements of the thermal expansion of superconducting Co-doped ${BaFe}_{2} {As}_{2}$
journal, June 2009

Strange Inter-Layer Properties of Ba(Fe _{1- x} Co _x ) ₂ As ₂ Appearing in Ultrasonic Measurements
journal, November 2013

Normal-state spin dynamics and temperature-dependent spin-resonance energy in optimally doped BaFe1.85Co0.15As2
journal, December 2009

Doping dependence of spin dynamics in electron-doped $Ba {({Fe}_{1 - x} {Co}_{x})}_{2} {As}_{2}$
journal, August 2010

Electron doping evolution of the anisotropic spin excitations in BaFe $_{2 - x}$ Ni $_{x}$ As $_{2}$
journal, July 2012

High-temperature superconductivity in iron pnictides and chalcogenides
journal, March 2016

Uniaxial strain control of spin-polarization in multicomponent nematic order of BaFe2As2
journal, March 2018

Local orthorhombic lattice distortions in the paramagnetic tetragonal phase of superconducting NaFe1−xNixAs
journal, August 2018

Nematic magnetoelastic effect contrasted between $Ba ({Fe}_{1 - x} {Co}_{x})_{2} {As}_{2}$ and FeSe
journal, February 2016

Strain-Induced Spin-Nematic State and Nematic Susceptibility Arising from $2 \times 2$ Fe Clusters in ${KFe}_{0.8} {Ag}_{1.2} {Te}_{2}$
journal, December 2019

High Temperature Superconductivity in Iron Pnictides and Chalcogenides
text, January 2016