Suppression of magnetic order in CaCo1.86As2 with Fe substitution: Magnetization, neutron diffraction, and x-ray diffraction studies of Ca(Co1–xFex)yAs2

Jayasekara, W. T.; Pandey, Abhishek; Kreyssig, A.; Sangeetha, N. S.; Sapkota, A.; Kothapalli, K.; Anand, V. K.; Tian, W.; Vaknin, D.; Johnston, D. C.; McQueeney, R. J.; Goldman, A. I.; Ueland, B. G.

doi:10.1103/PhysRevB.95.064425

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

Abstract

Magnetization, neutron diffraction, and high-energy x-ray diffraction results for Sn-flux grown single-crystal samples of Ca(Co_1–xFe_x)_yAs₂, 0 ≤ x ≤ 1, 1.86 ≤ y ≤ 2, are presented and reveal that A-type antiferromagnetic order, with ordered moments lying along the c axis, persists for x ≲ 0.12(1). The antiferromagnetic order is smoothly suppressed with increasing x, with both the ordered moment and Néel temperature linearly decreasing. Stripe-type antiferromagnetic order does not occur for x ≤ 0.25, nor does ferromagnetic order for x up to at least x = 0.104, and a smooth crossover from the collapsed-tetragonal (cT) phase of CaCo_1.86As₂ to the tetragonal (T) phase of CaFe₂As₂ occurs. Furthermore, these results suggest that hole doping CaCo_1.86As₂ has a less dramatic effect on the magnetism and structure than steric effects due to substituting Sr for Ca.

Authors:

Jayasekara, W. T. ^[1]; Pandey, Abhishek ^[2]; Kreyssig, A. ^[1]; Sangeetha, N. S. ^[1]; Sapkota, A. ^[1]; Kothapalli, K. ^[1]; Anand, V. K. ^[3]; Tian, W. ^[4]; Vaknin, D. ^[1]; Johnston, D. C. ^[1]; McQueeney, R. J. ^[1]; Goldman, A. I. ^[1]; Ueland, B. G. ^[1]

Ames Lab. and Iowa State Univ., Ames, IA (United States)
Ames Lab. and Iowa State Univ., Ames, IA (United States); Texas A & M Univ., College Station, TX (United States)
Ames Lab. and Iowa State Univ., Ames, IA (United States); Helmholtz-Zentrum Berlin fur Materialien und Energie GmbH, Berlin (Germany)
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

Publication Date:: Thu Feb 23 00:00:00 EST 2017

Research Org.:: Ames Lab., Ames, IA (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1347399

Alternate Identifier(s):: OSTI ID: 1344816

Report Number(s):: IS-J-9213
Journal ID: ISSN 2469-9950; PRBMDO; TRN: US1700689

Grant/Contract Number:: AC02-07CH11358; AC02-06CH11357

Resource Type:: Accepted Manuscript

Journal Name:: Physical Review B

Additional Journal Information:: Journal Volume: 95; Journal Issue: 6; 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


                    Jayasekara, W. T., Pandey, Abhishek, Kreyssig, A., Sangeetha, N. S., Sapkota, A., Kothapalli, K., Anand, V. K., Tian, W., Vaknin, D., Johnston, D. C., McQueeney, R. J., Goldman, A. I., and Ueland, B. G. Suppression of magnetic order in CaCo1.86As2 with Fe substitution: Magnetization, neutron diffraction, and x-ray diffraction studies of Ca(Co1–xFex)yAs2.  United States: N. p., 2017. 
Web.  doi:10.1103/PhysRevB.95.064425.

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                    Jayasekara, W. T., Pandey, Abhishek, Kreyssig, A., Sangeetha, N. S., Sapkota, A., Kothapalli, K., Anand, V. K., Tian, W., Vaknin, D., Johnston, D. C., McQueeney, R. J., Goldman, A. I., & Ueland, B. G. Suppression of magnetic order in CaCo1.86As2 with Fe substitution: Magnetization, neutron diffraction, and x-ray diffraction studies of Ca(Co1–xFex)yAs2.  United States.  https://doi.org/10.1103/PhysRevB.95.064425

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                    Jayasekara, W. T., Pandey, Abhishek, Kreyssig, A., Sangeetha, N. S., Sapkota, A., Kothapalli, K., Anand, V. K., Tian, W., Vaknin, D., Johnston, D. C., McQueeney, R. J., Goldman, A. I., and Ueland, B. G. Thu .  
"Suppression of magnetic order in CaCo1.86As2 with Fe substitution: Magnetization, neutron diffraction, and x-ray diffraction studies of Ca(Co1–xFex)yAs2".  United States.  https://doi.org/10.1103/PhysRevB.95.064425.  https://www.osti.gov/servlets/purl/1347399.

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@article{osti_1347399,

  title        = {Suppression of magnetic order in CaCo1.86As2 with Fe substitution: Magnetization, neutron diffraction, and x-ray diffraction studies of Ca(Co1–xFex)yAs2},

  author       = {Jayasekara, W. T. and Pandey, Abhishek and Kreyssig, A. and Sangeetha, N. S. and Sapkota, A. and Kothapalli, K. and Anand, V. K. and Tian, W. and Vaknin, D. and Johnston, D. C. and McQueeney, R. J. and Goldman, A. I. and Ueland, B. G.},

  abstractNote = {Magnetization, neutron diffraction, and high-energy x-ray diffraction results for Sn-flux grown single-crystal samples of Ca(Co1–xFex)yAs2, 0 ≤ x ≤ 1, 1.86 ≤ y ≤ 2, are presented and reveal that A-type antiferromagnetic order, with ordered moments lying along the c axis, persists for x ≲ 0.12(1). The antiferromagnetic order is smoothly suppressed with increasing x, with both the ordered moment and Néel temperature linearly decreasing. Stripe-type antiferromagnetic order does not occur for x ≤ 0.25, nor does ferromagnetic order for x up to at least x = 0.104, and a smooth crossover from the collapsed-tetragonal (cT) phase of CaCo1.86As2 to the tetragonal (T) phase of CaFe2As2 occurs. Furthermore, these results suggest that hole doping CaCo1.86As2 has a less dramatic effect on the magnetism and structure than steric effects due to substituting Sr for Ca.},

  doi          = {10.1103/PhysRevB.95.064425},

  journal      = {Physical Review B},

  number       = 6,

  volume       = 95,

  place        = {United States},

  year         = {Thu Feb 23 00:00:00 EST 2017},

  month        = {Thu Feb 23 00:00:00 EST 2017}

}

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Title: 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

Abstract

Citation Formats

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Renormalized behavior and proximity of BaCo 2 As 2 to a magnetic quantum critical point journal, January 2009

Pressure-induced collapsed-tetragonal phase in SrCo 2 As 2 journal, December 2015

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

Neutron studies of the iron-based family of high TC magnetic superconductors journal, May 2009

Stripe Antiferromagnetic Spin Fluctuations in SrCo 2 As 2 journal, October 2013

Physical properties of metallic antiferromagnetic CaCo 1.86 As 2 single crystals journal, June 2014

Relation between the specific heat and susceptibility of an antiferromagnet journal, October 1962

Antiferromagnetic ordering in the absence of structural distortion in Ba ( Fe 1 − x Mn x ) 2 As 2 journal, December 2010

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

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

Bindungsverhältnisse und magnetische Eigenschaften ternärer Arsenide ET2As2 / Bonding and Magnetic Properties in Ternary Arsenides ET2As2 journal, July 1983

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

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

Similarities between structural distortions under pressure and chemical doping in superconducting BaFe2As2
journal, May 2009

Field-induced spin-flop transitions in single-crystalline CaCo $_{2}$ As $_{2}$
journal, April 2012

Metamagnetic transition in Ca $_{1 - x}$ Sr $_{x}$ Co $_{2}$ As $_{2}$ ( $x$ $=$ 0 and 0.1) single crystals
journal, June 2012

Strong Coupling of the Fe-Spin State and the As-As Hybridization in Iron-Pnictide Superconductors from First-Principle Calculations
journal, January 2009

Lattice and magnetic instabilities in ${CaFe}_{2} {As}_{2}$ : A single-crystal neutron diffraction study
journal, September 2008

Ferromagnetic quantum critical point induced by dimer-breaking in SrCo2(Ge1−xPx)2
journal, January 2011

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

Evidence for a Lifshitz transition in electron-doped iron arsenic superconductors at the onset of superconductivity
journal, May 2010

The magnetic phase diagram of Ca _1−x Sr _x Co ₂ As ₂ single crystals
journal, December 2013

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

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

Structure and magnetic properties of the phosphides CaCo2P2 and LnT2P2 with ThCr2Si2 structure and LnTP with PbFCl structure (Ln = Lanthanoids, T = Fe, Co, Ni)†
journal, January 1990

VESTA 3 for three-dimensional visualization of crystal, volumetric and morphology data
journal, October 2011

Zur Struktur ternärer Übergangsmetallarsenide/On the Structure of Ternary Arsenides
journal, June 1980

Phase diagram of the iron arsenide superconductors Ca(Fe $_{1 - x}$ Co $_{x}$ ) $_{2}$ As $_{2}$ ( $0 ⩽ x ⩽ 0.2$ )
journal, March 2011

Antiferromagnetic order in the ThCr2Si2 type phosphides CaCo2P2 and CeCo2P2
journal, February 1998

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

Thermal expansion of CaFe $_{2}$ As $_{2}$ : Effect of cobalt doping and postgrowth thermal treatment
journal, August 2013

Combined effects of transition metal (Ni and Rh) substitution and annealing/quenching on the physical properties of ${CaFe}_{2} {As}_{2}$
journal, August 2014

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

Lattice collapse and the magnetic phase diagram of ${Sr}_{1 - x} {Ca}_{x} {Co}_{2} P_{2}$
journal, October 2009

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

Single crystal growth and superconductivity of Ca(Fe _{1− x} Co _x ) ₂ As ₂
journal, August 2012

Coexistence of antiferromagnetic and ferromagnetic spin correlations in ${SrCo}_{2} {As}_{2}$ revealed by ${}^{59}{Co}$ and ${}^{75}{As}$ NMR
journal, June 2015

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

Suppression of antiferromagnetic spin fluctuations in the collapsed phase of ${CaFe}_{2} {As}_{2}$
journal, February 2009

Magnetic and structural properties of $Ca {({Fe}_{1 - x} {Co}_{x})}_{2} P_{2}$ and $Ca {({Ni}_{1 - x} {Co}_{x})}_{2} P_{2}$
journal, June 2010

Superconductivity in iron compounds
journal, December 2011

Inelastic Neutron Scattering Study of a Nonmagnetic Collapsed Tetragonal Phase in Nonsuperconducting ${CaFe}_{2} {As}_{2}$ : Evidence of the Impact of Spin Fluctuations on Superconductivity in the Iron-Arsenide Compounds
journal, November 2013

Control of magnetic, nonmagnetic, and superconducting states in annealed Ca(Fe $_{1 - x}$ Co $_{x}$ ) $_{2}$ As $_{2}$
journal, June 2012

Spin-flop transition and magnetic phase diagram in ${CaCo}_{2} {As}_{2}$ revealed by torque measurements
journal, October 2015

Renormalized behavior and proximity of ${BaCo}_{2} {As}_{2}$ to a magnetic quantum critical point
journal, January 2009

Pressure-induced collapsed-tetragonal phase in ${SrCo}_{2} {As}_{2}$
journal, December 2015

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

Neutron studies of the iron-based family of high TC magnetic superconductors
journal, May 2009

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

Physical properties of metallic antiferromagnetic ${CaCo}_{1.86}$ ${As}_{2}$ single crystals
journal, June 2014

Relation between the specific heat and susceptibility of an antiferromagnet
journal, October 1962

Antiferromagnetic ordering in the absence of structural distortion in $Ba {({Fe}_{1 - x} {Mn}_{x})}_{2} {As}_{2}$
journal, December 2010

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

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

Bindungsverhältnisse und magnetische Eigenschaften ternärer Arsenide ET2As2 / Bonding and Magnetic Properties in Ternary Arsenides ET2As2
journal, July 1983