Helical magnetic ordering in Sr(Co1-xNix)2As2

Wilde, John M.; Kreyssig, A.; Vaknin, D.; Sangeetha, N. S.; Li, Bing; Tian, Wei; Orth, Peter P.; Johnston, David C.; Ueland, B. G.; McQueeney, R. J.

doi:10.1103/PhysRevB.100.161113

Title: Helical magnetic ordering in $Sr {({Co}_{1 - x} {Ni}_{x})}_{2} {As}_{2}$

Abstract

SrCo₂As₂ is a peculiar itinerant magnetic system that does not order magnetically, but inelastic neutron-scattering experiments observe the same stripe-type antiferromagnetic (AF) fluctuations found in many of the Fe-based superconductors along with evidence of magnetic frustration. Here we present results from neutron diffraction measurements on single crystals of Sr(Co_1-xNi_x)₂As₂ that show the development of long-range AF order with Ni doping. However, the AF order is not stripe type. Rather, the magnetic structure consists of ferromagnetically aligned (FM) layers (with moments laying in the layer) that are AF arranged along c with an incommensurate propagation vector of (0 0 τ), i.e., a helix. Using high-energy x-ray diffraction, we find no evidence for a temperature-induced structural phase transition that would indicate a collinear AF order. This finding supports a picture of competing FM and AF interactions within the square transition-metal layers due to flat-band magnetic instabilities. However, the composition dependence of the propagation vector suggests that far more subtle Fermi surface and orbital effects control the interlayer magnetic correlations.

Authors:

^[1]; Kreyssig, A. ^[1];

^[1]; Sangeetha, N. S. ^[1];

^[1];

^[2];

^[1]; Johnston, David C. ^[1];

^[1]; McQueeney, R. J. ^[1]

Ames Lab., and Iowa State Univ., Ames, IA (United States)
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

Publication Date:: 2019-10-29

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

Sponsoring Org.:: USDOE Office of Science (SC), Basic Energy Sciences (BES)

OSTI Identifier:: 1606994

Grant/Contract Number:: AC05-00OR22725

Resource Type:: Accepted Manuscript

Journal Name:: Physical Review B

Additional Journal Information:: Journal Volume: 100; Journal Issue: 16; 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

Citation Formats


                    Wilde, John M., Kreyssig, A., Vaknin, D., Sangeetha, N. S., Li, Bing, Tian, Wei, Orth, Peter P., Johnston, David C., Ueland, B. G., and McQueeney, R. J. Helical magnetic ordering in Sr(Co1-xNix)2As2.  United States: N. p., 2019. 
Web.  doi:10.1103/PhysRevB.100.161113.

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                    Wilde, John M., Kreyssig, A., Vaknin, D., Sangeetha, N. S., Li, Bing, Tian, Wei, Orth, Peter P., Johnston, David C., Ueland, B. G., & McQueeney, R. J. Helical magnetic ordering in Sr(Co1-xNix)2As2.  United States.  https://doi.org/10.1103/PhysRevB.100.161113

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                    Wilde, John M., Kreyssig, A., Vaknin, D., Sangeetha, N. S., Li, Bing, Tian, Wei, Orth, Peter P., Johnston, David C., Ueland, B. G., and McQueeney, R. J. Tue .  
"Helical magnetic ordering in Sr(Co1-xNix)2As2".  United States.  https://doi.org/10.1103/PhysRevB.100.161113.  https://www.osti.gov/servlets/purl/1606994.

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@article{osti_1606994,

  title        = {Helical magnetic ordering in Sr(Co1-xNix)2As2},

  author       = {Wilde, John M. and Kreyssig, A. and Vaknin, D. and Sangeetha, N. S. and Li, Bing and Tian, Wei and Orth, Peter P. and Johnston, David C. and Ueland, B. G. and McQueeney, R. J.},

  abstractNote = {SrCo2As2 is a peculiar itinerant magnetic system that does not order magnetically, but inelastic neutron-scattering experiments observe the same stripe-type antiferromagnetic (AF) fluctuations found in many of the Fe-based superconductors along with evidence of magnetic frustration. Here we present results from neutron diffraction measurements on single crystals of Sr(Co1-xNix)2As2 that show the development of long-range AF order with Ni doping. However, the AF order is not stripe type. Rather, the magnetic structure consists of ferromagnetically aligned (FM) layers (with moments laying in the layer) that are AF arranged along c with an incommensurate propagation vector of (0 0 τ), i.e., a helix. Using high-energy x-ray diffraction, we find no evidence for a temperature-induced structural phase transition that would indicate a collinear AF order. This finding supports a picture of competing FM and AF interactions within the square transition-metal layers due to flat-band magnetic instabilities. However, the composition dependence of the propagation vector suggests that far more subtle Fermi surface and orbital effects control the interlayer magnetic correlations.},

  doi          = {10.1103/PhysRevB.100.161113},

  journal      = {Physical Review B},

  number       = 16,

  volume       = 100,

  place        = {United States},

  year         = {2019},

  month        = {10}

}

Copy to clipboard

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Competing magnetic phases and itinerant magnetic frustration in SrCo 2 As 2 journal, August 2019

The puzzle of high temperature superconductivity in layered iron pnictides and chalcogenides journal, October 2010

Strong Correlations and Magnetic Frustration in the High Tc Iron Pnictides text, January 2008

Superconductivity and phase diagrams in 4d- and 5d-metal-doped iron arsenides SrFe_{2-x}M_xAs_2 (M = Rh, Ir, Pd) text, January 2009

Superconductivity at 23 K in Pt doped BaFe2As2 single crystals text, January 2009

FeAs-based superconductivity: a case study of the effects of transition metal doping on BaFe2As2 text, January 2010

High-temperature superconductivity in iron-based materials text, January 2010

Consistent model of magnetism in ferropnictides text, January 2010

Kinetic frustration and the nature of the magnetic and paramagnetic states in iron pnictides and iron chalcogenides text, January 2011

Superconductivity in Iron Compounds text, January 2011

Preemptive nematic order, pseudogap, and orbital order in the iron pnictides text, January 2011

Unified Molecular Field Theory for Collinear and Noncollinear Heisenberg Antiferromagnets text, January 2014

Electronic structure and spin dynamics of ACo2As2 (A=Ba, Sr, Ca) text, January 2018

Title: Helical magnetic ordering in $Sr {({Co}_{1 - x} {Ni}_{x})}_{2} {As}_{2}$

Crystallographic, electronic, thermal, and magnetic properties of single-crystal SrCo $_{2}$ As $_{2}$
journal, July 2013

Superconductivity at 23 K in Pt doped BaFe ₂ As ₂ single crystals
journal, February 2010

Suppression of magnetic order in ${CaCo}_{1.86} {As}_{2}$ with Fe substitution: Magnetization, neutron diffraction, and x-ray diffraction studies of $Ca {({Co}_{1 - x} {Fe}_{x})}_{y} {As}_{2}$
journal, February 2017

Ising and spin orders in the iron-based superconductors
journal, July 2008

The Devil's staircase and harmless staircase. I. Oscillating interactions through elastic strains or other harmonic fields
journal, June 1980

Anisotropic thermodynamic and transport properties of single-crystalline ${Ba}_{1 - x} K_{x} {Fe}_{2} {As}_{2}$ ( $x = 0$ and 0.45)
journal, July 2008

Ferromagnetic behavior induced by La-doping in SrCo ₂ As ₂
journal, January 2018

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

Magnetic Susceptibility of Collinear and Noncollinear Heisenberg Antiferromagnets
journal, August 2012

Stabilization of an ambient-pressure collapsed tetragonal phase in CaFe $_{2}$ As $_{2}$ and tuning of the orthorhombic-antiferromagnetic transition temperature by over 70 K via control of nanoscale precipitates
journal, April 2011

Consistent model of magnetism in ferropnictides
journal, March 2011

Decoupling of the superconducting and magnetic/structural phase transitions in electron-doped ${BaFe}_{2} {As}_{2}$
journal, August 2009

Effect of magnetic frustration on nematicity and superconductivity in iron chalcogenides
journal, August 2015

Infinitely Many Commensurate Phases in a Simple Ising Model
journal, June 1980

Coexistence of Ferromagnetic and Stripe Antiferromagnetic Spin Fluctuations in ${SrCo}_{2} {As}_{2}$
journal, March 2019

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

Superconductivity and phase diagrams of the $4 d$ - and $5 d$ -metal-doped iron arsenides ${SrFe}_{2 - x} M_{x} {As}_{2}$ $(M = Rh, Ir, Pd)$
journal, July 2009

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

Structural collapse and superconductivity in rare-earth-doped CaFe $_{2}$ As $_{2}$
journal, January 2012

Flat-band magnetism and helical magnetic order in Ni-doped ${SrCo}_{2} {As}_{2}$
journal, September 2019

Non-Fermi-liquid types of behavior associated with a magnetic quantum critical point in $Sr {({Co}_{1 - x} {Ni}_{x})}_{2} {As}_{2}$ single crystals
journal, September 2019

Unified molecular field theory for collinear and noncollinear Heisenberg antiferromagnets
journal, February 2015

Magnetic properties and Mott transition in the square-lattice Hubbard model with frustration
journal, August 2013

Anomalous Composition-Induced Crossover in the Magnetic Properties of the Itinerant-Electron Antiferromagnet ${Ca}_{1 - x} {Sr}_{x} {Co}_{2 - y} {As}_{2}$
journal, December 2017

Infinitely Many Commensurate Phases in a Simple Ising Model.
journal, July 1980

FeAs-Based Superconductivity: A Case Study of the Effects of Transition Metal Doping on BaFe ₂ As ₂
journal, August 2010

Phase diagrams of $Ba {({Fe}_{1 - x} M_{x})}_{2} {As}_{2}$ single crystals ( $M = Rh$ and Pd)
journal, July 2009

Crystal and magnetic structure of CaCo $_{1.86}$ As $_{2}$ studied by x-ray and neutron diffraction
journal, November 2013

Antiferromagnetic stacking of ferromagnetic layers and doping-controlled phase competition in ${Ca}_{1 - x} {Sr}_{x} {Co}_{2 - y} {As}_{2}$
journal, July 2019

Making and Breaking Bonds in the Solid State: The ThCr ₂ Si ₂ Structure
journal, September 1985

High-temperature superconductivity in iron-based materials
journal, August 2010

Superconductivity in iron compounds
journal, December 2011

Crystallographic phase transition within the magnetically ordered state of ${Ce}_{2} {Fe}_{17}$
journal, August 2007

Lattice collapse and quenching of magnetism in ${CaFe}_{2} {As}_{2}$ under pressure: A single-crystal neutron and x-ray diffraction investigation
journal, January 2009

Superconductivity at 22 K in Co-Doped ${BaFe}_{2} {As}_{2}$ Crystals
journal, September 2008

Stripe Antiferromagnetic Spin Fluctuations in ${SrCo}_{2} {As}_{2}$
journal, October 2013

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

Electronic structure and spin dynamics of $A C o_{2} A s_{2} (A = Ba, Sr, Ca)$
journal, September 2018

Ising model with solitons, phasons, and "the devil's staircase"
journal, June 1980

The Devil's staircase and harmless staircase. I. Oscillating interactions through elastic strains or other harmonic fields
journal, February 1981

Superconductivity induced by Ni doping in BaFe ₂ As ₂ single crystals
journal, February 2009

Effective One-Dimensional Coupling in the Highly Frustrated Square-Lattice Itinerant Magnet ${CaCo}_{2 - y} {As}_{2}$
journal, October 2017

Competing magnetic phases and itinerant magnetic frustration in ${SrCo}_{2} {As}_{2}$
journal, August 2019

The puzzle of high temperature superconductivity in layered iron pnictides and chalcogenides
journal, October 2010

Strong Correlations and Magnetic Frustration in the High Tc Iron Pnictides
text, January 2008

Superconductivity and phase diagrams in 4d- and 5d-metal-doped iron arsenides SrFe_{2-x}M_xAs_2 (M = Rh, Ir, Pd)
text, January 2009

Superconductivity at 23 K in Pt doped BaFe2As2 single crystals
text, January 2009

FeAs-based superconductivity: a case study of the effects of transition metal doping on BaFe2As2
text, January 2010

High-temperature superconductivity in iron-based materials
text, January 2010

Consistent model of magnetism in ferropnictides
text, January 2010

Kinetic frustration and the nature of the magnetic and paramagnetic states in iron pnictides and iron chalcogenides
text, January 2011

Superconductivity in Iron Compounds
text, January 2011

Preemptive nematic order, pseudogap, and orbital order in the iron pnictides
text, January 2011

Unified Molecular Field Theory for Collinear and Noncollinear Heisenberg Antiferromagnets
text, January 2014

Electronic structure and spin dynamics of ACo2As2 (A=Ba, Sr, Ca)
text, January 2018