Spin dynamics in NaFeAs and NaFe0.53Cu0.47As probed by resonant inelastic x-ray scattering

Song, Yu; Wang, Weiyi; Paris, Eugenio; Lu, Xingye; Pelliciari, Jonathan; Tseng, Yi; Huang, Yaobo; McNally, Daniel; Dantz, Marcus; Cao, Chongde; Yu, Rong; Birgeneau, Robert J.; Schmitt, Thorsten; Dai, Pengcheng

doi:10.1103/physrevb.103.075112

Title: Spin dynamics in NaFeAs and NaFe_0.53Cu_0.47As probed by resonant inelastic x-ray scattering

Abstract

The parent compounds of iron-based superconductors are magnetically ordered bad metals, with superconductivity appearing near a putative magnetic quantum critical point. The presence of both Hubbard repulsion and Hund’s coupling leads to rich physics in these multiorbital systems, and motivated descriptions of magnetism in terms of itinerant electrons or localized spins. The NaFe_1–xCu_xAs series consists of magnetically ordered bad metal (x = 0), superconducting (x ≈ 0.02) and magnetically ordered semiconducing/insulating (x ≈ 0.5) phases, providing a platform to investigate the connection between superconductivity, magnetism and electronic correlations. Here we use x-ray absorption spectroscopy and resonant inelastic x-ray scattering to study the valence state of Fe and spin dynamics in two NaFe_1–xCu_xAs compounds (x = 0 and 0.47). We find that magnetism in both compounds arises from Fe²⁺ atoms, and exhibits underdamped dispersive spin waves in their respective ordered states. The dispersion of spin excitations in NaFe_0.53Cu_0.47As is consistent with being quasi-one-dimensional. Compared to NaFeAs, the band top of spin waves in NaFe_0.53Cu_0.47As is slightly softened with significantly more spectral weight of the spin excitations. Here, our results indicate the spin dynamics in NaFe_0.53Cu_0.47As arise from localized magnetic moments and suggest the iron-based superconductors are proximate to a correlated insulatingmore » state with localized iron moments.« less

Authors:

Song, Yu ^[1]; Wang, Weiyi ^[2];

^[3]; Lu, Xingye ^[4]; Pelliciari, Jonathan ^[5]; Tseng, Yi ^[3]; Huang, Yaobo ^[3]; McNally, Daniel ^[3]; Dantz, Marcus ^[3];

^[6]; Yu, Rong ^[7]; Birgeneau, Robert J. ^[8]; Schmitt, Thorsten ^[3];

^[2]

Rice Univ., Houston, TX (United States); Univ. of California, Berkeley, CA (United States); Zhejiang Univ., Hangzhou (China)
Rice Univ., Houston, TX (United States)
Paul Scherrer Inst. (PSI), Villigen (Switzerland)
Beijing Normal Univ. (China); Paul Scherrer Inst. (PSI), Villigen (Switzerland)
Paul Scherrer Inst. (PSI), Villigen (Switzerland); Brookhaven National Lab. (BNL), Upton, NY (United States)
Northwestern Polytechnical Univ., Xian (China)
Renmin Univ. of China, Beijing (China)
Univ. of California, Berkeley, CA (United States)

Publication Date:: Thu Feb 04 00:00:00 EST 2021

Research Org.:: Rice Univ., Houston, TX (United States); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)

Sponsoring Org.:: USDOE Office of Science (SC), Basic Energy Sciences (BES). Materials Sciences & Engineering Division; Robert A. Welch Foundation; SNSF Research; National Science Foundation of China; Fundamental Research Funds for the Central Univ. and the Research Funds of Remnin Univ. of China

OSTI Identifier:: 1773810

Alternate Identifier(s):: OSTI ID: 1877038

Grant/Contract Number:: SC0012311; C-1839; AC02-05CH11231; 200021L 141325; 11374361; 11674392; 18XNLG24

Resource Type:: Accepted Manuscript

Journal Name:: Physical Review B

Additional Journal Information:: Journal Volume: 103; Journal Issue: 7; Journal ID: ISSN 2469-9950

Publisher:: American Physical Society (APS)

Country of Publication:: United States

Language:: English

Subject:: 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; Antiferromagnets; Single crystal materials; Strongly correlated systems; Resonant inelastic x-ray scattering; X-ray absorption spectroscopy

Citation Formats


                    Song, Yu, Wang, Weiyi, Paris, Eugenio, Lu, Xingye, Pelliciari, Jonathan, Tseng, Yi, Huang, Yaobo, McNally, Daniel, Dantz, Marcus, Cao, Chongde, Yu, Rong, Birgeneau, Robert J., Schmitt, Thorsten, and Dai, Pengcheng. Spin dynamics in NaFeAs and NaFe0.53Cu0.47As probed by resonant inelastic x-ray scattering.  United States: N. p., 2021. 
Web.  doi:10.1103/physrevb.103.075112.

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                    Song, Yu, Wang, Weiyi, Paris, Eugenio, Lu, Xingye, Pelliciari, Jonathan, Tseng, Yi, Huang, Yaobo, McNally, Daniel, Dantz, Marcus, Cao, Chongde, Yu, Rong, Birgeneau, Robert J., Schmitt, Thorsten, & Dai, Pengcheng. Spin dynamics in NaFeAs and NaFe0.53Cu0.47As probed by resonant inelastic x-ray scattering.  United States.  https://doi.org/10.1103/physrevb.103.075112

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                    Song, Yu, Wang, Weiyi, Paris, Eugenio, Lu, Xingye, Pelliciari, Jonathan, Tseng, Yi, Huang, Yaobo, McNally, Daniel, Dantz, Marcus, Cao, Chongde, Yu, Rong, Birgeneau, Robert J., Schmitt, Thorsten, and Dai, Pengcheng. Thu .  
"Spin dynamics in NaFeAs and NaFe0.53Cu0.47As probed by resonant inelastic x-ray scattering".  United States.  https://doi.org/10.1103/physrevb.103.075112.  https://www.osti.gov/servlets/purl/1773810.

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@article{osti_1773810,

  title        = {Spin dynamics in NaFeAs and NaFe0.53Cu0.47As probed by resonant inelastic x-ray scattering},

  author       = {Song, Yu and Wang, Weiyi and Paris, Eugenio and Lu, Xingye and Pelliciari, Jonathan and Tseng, Yi and Huang, Yaobo and McNally, Daniel and Dantz, Marcus and Cao, Chongde and Yu, Rong and Birgeneau, Robert J. and Schmitt, Thorsten and Dai, Pengcheng},

  abstractNote = {The parent compounds of iron-based superconductors are magnetically ordered bad metals, with superconductivity appearing near a putative magnetic quantum critical point. The presence of both Hubbard repulsion and Hund’s coupling leads to rich physics in these multiorbital systems, and motivated descriptions of magnetism in terms of itinerant electrons or localized spins. The NaFe1–xCuxAs series consists of magnetically ordered bad metal (x = 0), superconducting (x ≈ 0.02) and magnetically ordered semiconducing/insulating (x ≈ 0.5) phases, providing a platform to investigate the connection between superconductivity, magnetism and electronic correlations. Here we use x-ray absorption spectroscopy and resonant inelastic x-ray scattering to study the valence state of Fe and spin dynamics in two NaFe1–xCuxAs compounds (x = 0 and 0.47). We find that magnetism in both compounds arises from Fe2+ atoms, and exhibits underdamped dispersive spin waves in their respective ordered states. The dispersion of spin excitations in NaFe0.53Cu0.47As is consistent with being quasi-one-dimensional. Compared to NaFeAs, the band top of spin waves in NaFe0.53Cu0.47As is slightly softened with significantly more spectral weight of the spin excitations. Here, our results indicate the spin dynamics in NaFe0.53Cu0.47As arise from localized magnetic moments and suggest the iron-based superconductors are proximate to a correlated insulating state with localized iron moments.},

  doi          = {10.1103/physrevb.103.075112},

  journal      = {Physical Review B},

  number       = 7,

  volume       = 103,

  place        = {United States},

  year         = {Thu Feb 04 00:00:00 EST 2021},

  month        = {Thu Feb 04 00:00:00 EST 2021}

}

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Spin Waves and Electronic Interactions in ${La}_{2} {CuO}_{4}$
journal, June 2001

Coldea, R.; Hayden, S. M.; Aeppli, G.
Physical Review Letters, Vol. 86, Issue 23
DOI: 10.1103/PhysRevLett.86.5377

Localization and orbital selectivity in iron-based superconductors with Cu substitution
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Liu, Yang; Liu, Da-Yong; Wang, Jiang-Long
Physical Review B, Vol. 92, Issue 15
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A common thread: The pairing interaction for unconventional superconductors
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Scalapino, D. J.
Reviews of Modern Physics, Vol. 84, Issue 4
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Title: Spin dynamics in NaFeAs and NaFe0.53Cu0.47As probed by resonant inelastic x-ray scattering

Abstract

Citation Formats

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A Mott insulator continuously connected to iron pnictide superconductors journal, December 2016

Structural, magnetic, and electronic transport properties of hole-doped SrFe 2 − x Cu x As 2 single crystals journal, February 2013

Gradual destruction of magnetism in the superconducting family NaFe 1 − x Co x As journal, February 2012

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

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

Exotic Magnetic Order in the Orbital-Selective Mott Regime of Multiorbital Systems journal, March 2014

Conductivity anisotropy and localization of charge carriers in CuFeTe2 single crystals with a layered structure journal, October 2006

Inelastic neutron scattering study of spin excitations in the superconducting state of high temperature superconductors journal, September 2007

Spin-Wave Spectrum of the Antiferromagnetic Linear Chain journal, December 1962

Resonant inelastic x-ray scattering at the Fe L 3 edge of the one-dimensional chalcogenide BaFe 2 Se 3 journal, October 2013

Itinerant spin excitations in SrFe 2 As 2 measured by inelastic neutron scattering journal, June 2011

Strong Correlations and Magnetic Frustration in the High T c Iron Pnictides journal, August 2008

U ( 1 ) slave-spin theory and its application to Mott transition in a multiorbital model for iron pnictides journal, August 2012

Atomically resolved spectroscopic study of Sr2IrO4: Experiment and theory journal, October 2013

Magnetic Neutron Scattering in Hole-Doped Cuprate Superconductors journal, November 2006

In-plane spin excitation anisotropy in the paramagnetic state of NaFeAs journal, October 2013

SAXES, a high resolution spectrometer for resonant x-ray emission in the 400–1600eV energy range journal, November 2006

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Copper-substituted iron telluride: A phase diagram journal, June 2015

Nematic spin fluid in the tetragonal phase of BaFe 2 As 2 journal, August 2011

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Presence of magnetic excitations in SmFeAsO journal, September 2016

Electronic correlations in the iron pnictides journal, July 2009

Electronic and spin dynamics in the insulating iron pnictide NaFe 0.5 Cu 0.5 As journal, December 2017

Magnetic-order-driven metal-insulator transitions in the quasi-one-dimensional spin-ladder compounds BaFe 2 S 3 and BaFe 2 Se 3 journal, March 2020

Spin fluctuations in iron pnictides and chalcogenides: From antiferromagnetism to superconductivity journal, January 2016

Spin Waves and Electronic Interactions in La 2 CuO 4 journal, June 2001

Localization and orbital selectivity in iron-based superconductors with Cu substitution journal, October 2015

Title: Spin dynamics in NaFeAs and NaFe_0.53Cu_0.47As probed by resonant inelastic x-ray scattering

The magnetic moment enigma in Fe-based high temperature superconductors
journal, October 2014

Paramagnon dispersion in $β$ -FeSe observed by Fe $L$ -edge resonant inelastic x-ray scattering
journal, January 2019

Phase diagram and physical properties of NaFe $_{1 - x}$ Cu $_{x}$ As single crystals
journal, September 2013

Extracting paramagnon excitations from resonant inelastic x-ray scattering experiments
journal, June 2016

Persistent high-energy spin excitations in iron-pnictide superconductors
journal, February 2013

Local breaking of fourfold rotational symmetry by short-range magnetic order in heavily overdoped $Ba ({Fe}_{1 - x} {Cu}_{x})_{2} {As}_{2}$
journal, October 2017

Spin waves and magnetic exchange interactions in CaFe2As2
journal, July 2009

Electronic reconstruction through the structural and magnetic transitions in detwinned NaFeAs
journal, July 2012

Block Magnetic Excitations in the Orbitally Selective Mott Insulator ${BaFe}_{2} {Se}_{3}$
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journal, August 2015

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journal, July 2016

Pressure-induced superconductivity in the iron-based ladder material BaFe2S3
journal, July 2015

Resonant inelastic x-ray scattering studies of elementary excitations
journal, June 2011

Investigation of the gapless state in CuFeTe ₂
journal, October 1992

Effect of Pnictogen Height on Spin Waves in Iron Pnictides
journal, May 2014

ARPES study of the effect of Cu substitution on the electronic structure of NaFeAs
journal, December 2013

Intralayer doping effects on the high-energy magnetic correlations in NaFeAs
journal, April 2016

Slater to Mott Crossover in the Metal to Insulator Transition of ${Nd}_{2} {Ir}_{2} O_{7}$
journal, July 2016

Characteristic Timescales of the Local Moment Dynamics in Hund’s Metals
journal, August 2020

Janus-Faced Influence of Hund’s Rule Coupling in Strongly Correlated Materials
journal, December 2011

Stripe antiferromagnetism and disorder in the Mott insulator ${NaFe}_{1 - x} {Cu}_{x} As$ $(x ≲ 0.5)$
journal, February 2020

Anisotropic magnetic excitations and incipient Néel order in $Ba {({Fe}_{1 - x} {Mn}_{x})}_{2} {As}_{2}$
journal, March 2019

Theoretical study of insulating mechanism in multiorbital Hubbard models with a large spin-orbit coupling: Slater versus Mott scenario in ${Sr}_{2}$ ${IrO}_{4}$
journal, April 2014

Strong Similarities between the Local Electronic Structure of Insulating Iron Pnictide and Lightly Doped Cuprate
journal, April 2015

A Mott insulator continuously connected to iron pnictide superconductors
journal, December 2016

Structural, magnetic, and electronic transport properties of hole-doped SrFe $_{2 - x}$ Cu $_{x}$ As $_{2}$ single crystals
journal, February 2013

Gradual destruction of magnetism in the superconducting family NaFe $_{1 - x}$ Co $_{x}$ As
journal, February 2012

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

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

Exotic Magnetic Order in the Orbital-Selective Mott Regime of Multiorbital Systems
journal, March 2014

Conductivity anisotropy and localization of charge carriers in CuFeTe2 single crystals with a layered structure
journal, October 2006

Inelastic neutron scattering study of spin excitations in the superconducting state of high temperature superconductors
journal, September 2007

Spin-Wave Spectrum of the Antiferromagnetic Linear Chain
journal, December 1962

Resonant inelastic x-ray scattering at the Fe $L_{3}$ edge of the one-dimensional chalcogenide BaFe $_{2}$ Se $_{3}$
journal, October 2013

Itinerant spin excitations in SrFe $_{2}$ As $_{2}$ measured by inelastic neutron scattering
journal, June 2011

Strong Correlations and Magnetic Frustration in the High $T_{c}$ Iron Pnictides
journal, August 2008

$U (1)$ slave-spin theory and its application to Mott transition in a multiorbital model for iron pnictides
journal, August 2012

Atomically resolved spectroscopic study of Sr2IrO4: Experiment and theory
journal, October 2013

Magnetic Neutron Scattering in Hole-Doped Cuprate Superconductors
journal, November 2006

In-plane spin excitation anisotropy in the paramagnetic state of NaFeAs
journal, October 2013

SAXES, a high resolution spectrometer for resonant x-ray emission in the 400–1600eV energy range
journal, November 2006

Pressure-induced volume-collapsed tetragonal phase of ${CaFe}_{2} {As}_{2}$ as seen via neutron scattering
journal, November 2008

Resonant inelastic x-ray scattering study of electronic excitations in insulating $K_{0.83} {Fe}_{1.53} {Se}_{2}$
journal, June 2015

Soft X-ray absorption spectroscopy study of multiferroic Bi-substituted Ba1−x Bi x Ti0.9Fe0.1O3
journal, August 2016

Kinetic frustration and the nature of the magnetic and paramagnetic states in iron pnictides and iron chalcogenides
journal, September 2011

Orbital-selective superconductivity, gap anisotropy, and spin resonance excitations in a multiorbital $t$ - $J_{1}$ - $J_{2}$ model for iron pnictides
journal, January 2014

Insights into the high temperature superconducting cuprates from resonant inelastic X-ray scattering
journal, February 2015

Structural and magnetic phase transitions in ${Na}_{1 - δ} FeAs$
journal, July 2009

Local and collective magnetism of ${EuFe}_{2} {As}_{2}$
journal, March 2017

High-resolution soft X-ray beamline ADRESS at the Swiss Light Source for resonant inelastic X-ray scattering and angle-resolved photoelectron spectroscopies
journal, July 2010

High pressure transport studies of the LiFeAs analogs CuFeTe ₂ and Fe ₂ As
journal, July 2012

Electron doping evolution of the magnetic excitations in ${NaFe}_{1 - x} {Co}_{x} As$
journal, June 2016

Resonant inelastic x-ray scattering study of entangled spin-orbital excitations in superconducting PrFeAsO 0.7
journal, July 2016

Interplay of magnetism and superconductivity in the compressed Fe-ladder compound ${BaFe}_{2} {Se}_{3}$
journal, June 2017

Correlation-driven metal-insulator transition in proximity to an iron-based superconductor
journal, November 2017

Crystal growth and physical properties of SrCu $_{2}$ As $_{2}$ , SrCu $_{2}$ Sb $_{2}$ , and BaCu $_{2}$ Sb $_{2}$
journal, June 2012

Bulk nature of layered perovskite iridates beyond the Mott scenario: An approach from a bulk-sensitive photoemission study
journal, March 2014

Reciprocity between local moments and collective magnetic excitations in the phase diagram of BaFe2(As1−xPx)2
journal, November 2019

Role of the orbital degree of freedom in iron-based superconductors
journal, October 2017

Quantum criticality and universal scaling of a quantum antiferromagnet
journal, March 2005

Pressure-Induced Mott Transition Followed by a 24-K Superconducting Phase in ${BaFe}_{2} S_{3}$
journal, December 2015

Orbital-selective magnetism in the spin-ladder iron selenides Ba $_{1 - x}$ K $_{x}$ Fe $_{2}$ Se $_{3}$
journal, May 2012

Progress in Neutron Scattering Studies of Spin Excitations in High- T _c Cuprates
journal, January 2012

${NaFe}_{0.56} {Cu}_{0.44} As$ : A Pnictide Insulating Phase Induced by On-Site Coulomb Interaction
journal, August 2016

Electron doping evolution of the magnetic excitations in BaFe $_{2 - x}$ Ni $_{x}$ As $_{2}$
journal, October 2013

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

Doping a Mott insulator: Physics of high-temperature superconductivity
journal, January 2006

Copper-substituted iron telluride: A phase diagram
journal, June 2015

Nematic spin fluid in the tetragonal phase of BaFe $_{2}$ As $_{2}$
journal, August 2011

Magnetism and its microscopic origin in iron-based high-temperature superconductors
journal, October 2012

Presence of magnetic excitations in SmFeAsO
journal, September 2016

Electronic correlations in the iron pnictides
journal, July 2009

Electronic and spin dynamics in the insulating iron pnictide ${NaFe}_{0.5} {Cu}_{0.5} As$
journal, December 2017

Magnetic-order-driven metal-insulator transitions in the quasi-one-dimensional spin-ladder compounds ${BaFe}_{2} S_{3}$ and ${BaFe}_{2} {Se}_{3}$
journal, March 2020

Spin fluctuations in iron pnictides and chalcogenides: From antiferromagnetism to superconductivity
journal, January 2016

Spin Waves and Electronic Interactions in ${La}_{2} {CuO}_{4}$
journal, June 2001

Localization and orbital selectivity in iron-based superconductors with Cu substitution
journal, October 2015

A common thread: The pairing interaction for unconventional superconductors
journal, October 2012