Tetragonal magnetic phase in Ba1-xKxFe2As2 from x-ray and neutron diffraction

Allred, J. M.; Avci, S.; Chung, D. Y.; Claus, H.; Khalyavin, D. D.; Manuel, P.; Taddei, K. M.; Kanatzidis, M. G.; Rosenkranz, S.; Osborn, R.; Chmaissem, O.

doi:10.1103/PhysRevB.92.094515

Title: Tetragonal magnetic phase in ${Ba}_{1 - x} K_{x} {Fe}_{2} {As}_{2}$ from x-ray and neutron diffraction

Abstract

In this paper, combined neutron and x-ray diffraction experiments demonstrate the formation of a low-temperature minority magnetic tetragonal phase in Ba_0.76K_0.24Fe₂As₂ in addition to the majority magnetic, orthorhombic phase. The coincident enhancement in the magnetic (1/2 1/2 1) peaks shows that this minority phase is of the same type that was observed in Ba_1-xNa_xFe₂As₂ (0.24 ≤ x ≤ 0.28), in which the magnetic moments reorient along the c axis. This is evidence that the tetragonal magnetic phase is a universal feature of the hole-doped iron-based superconductors. Finally, the observations suggest that in this regime the energy levels of the C₂ and C₄ symmetric magnetic phases are very close.

Authors:

Allred, J. M. ^[1]; Avci, S. ^[2]; Chung, D. Y. ^[1]; Claus, H. ^[1]; Khalyavin, D. D. ^[3]; Manuel, P. ^[3]; Taddei, K. M. ^[4]; Kanatzidis, M. G. ^[5]; Rosenkranz, S. ^[1]; Osborn, R. ^[1]; Chmaissem, O. ^[4]

Argonne National Lab. (ANL), Argonne, IL (United States). Materials Science Division
Argonne National Lab. (ANL), Argonne, IL (United States). Materials Science Division; Afyon Kocatepe Univ., Afyon (Turkey). Dept. of Materials Science and Engineering
Rutherford Appleton Lab., Didcot (United Kingdom). ISIS Pulsed Neutron and Muon Source
Argonne National Lab. (ANL), Argonne, IL (United States). Materials Science Division; Northern Illinois Univ., DeKalb, IL (United States). Physics Dept.
Argonne National Lab. (ANL), Argonne, IL (United States). Materials Science Division; Northwestern Univ., Evanston, IL (United States). Dept. of Chemistry

Publication Date:: Mon Sep 28 00:00:00 EDT 2015

Research Org.:: Argonne National Laboratory (ANL), Argonne, IL (United States); Rutherford Appleton Lab., Didcot (United Kingdom)

Sponsoring Org.:: USDOE Office of Science (SC), Basic Energy Sciences (BES); Science and Technology Facilities Council (STFC) (United Kingdom)

Contributing Org.:: Northwestern Univ., Evanston, IL (United States); Northern Illinois Univ., DeKalb, IL (United States); Afyon Kocatepe Univ., Afyon (Turkey)

OSTI Identifier:: 1356619

Alternate Identifier(s):: OSTI ID: 1222240

Grant/Contract Number:: AC02-06CH11357

Resource Type:: Accepted Manuscript

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

Additional Journal Information:: Journal Volume: 92; Journal Issue: 9; Journal ID: ISSN 1098-0121

Publisher:: American Physical Society (APS)

Country of Publication:: United States

Language:: English

Subject:: 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; 36 MATERIALS SCIENCE

Citation Formats


                    Allred, J. M., Avci, S., Chung, D. Y., Claus, H., Khalyavin, D. D., Manuel, P., Taddei, K. M., Kanatzidis, M. G., Rosenkranz, S., Osborn, R., and Chmaissem, O. Tetragonal magnetic phase in Ba1-xKxFe2As2 from x-ray and neutron diffraction.  United States: N. p., 2015. 
Web.  doi:10.1103/PhysRevB.92.094515.

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                    Allred, J. M., Avci, S., Chung, D. Y., Claus, H., Khalyavin, D. D., Manuel, P., Taddei, K. M., Kanatzidis, M. G., Rosenkranz, S., Osborn, R., & Chmaissem, O. Tetragonal magnetic phase in Ba1-xKxFe2As2 from x-ray and neutron diffraction.  United States.  https://doi.org/10.1103/PhysRevB.92.094515

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                    Allred, J. M., Avci, S., Chung, D. Y., Claus, H., Khalyavin, D. D., Manuel, P., Taddei, K. M., Kanatzidis, M. G., Rosenkranz, S., Osborn, R., and Chmaissem, O. Mon .  
"Tetragonal magnetic phase in Ba1-xKxFe2As2 from x-ray and neutron diffraction".  United States.  https://doi.org/10.1103/PhysRevB.92.094515.  https://www.osti.gov/servlets/purl/1356619.

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@article{osti_1356619,

  title        = {Tetragonal magnetic phase in Ba1-xKxFe2As2 from x-ray and neutron diffraction},

  author       = {Allred, J. M. and Avci, S. and Chung, D. Y. and Claus, H. and Khalyavin, D. D. and Manuel, P. and Taddei, K. M. and Kanatzidis, M. G. and Rosenkranz, S. and Osborn, R. and Chmaissem, O.},

  abstractNote = {In this paper, combined neutron and x-ray diffraction experiments demonstrate the formation of a low-temperature minority magnetic tetragonal phase in Ba0.76K0.24Fe2As2 in addition to the majority magnetic, orthorhombic phase. The coincident enhancement in the magnetic (1/2 1/2 1) peaks shows that this minority phase is of the same type that was observed in Ba1-xNaxFe2As2 (0.24 ≤ x ≤ 0.28), in which the magnetic moments reorient along the c axis. This is evidence that the tetragonal magnetic phase is a universal feature of the hole-doped iron-based superconductors. Finally, the observations suggest that in this regime the energy levels of the C2 and C4 symmetric magnetic phases are very close.},

  doi          = {10.1103/PhysRevB.92.094515},

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

  number       = 9,

  volume       = 92,

  place        = {United States},

  year         = {Mon Sep 28 00:00:00 EDT 2015},

  month        = {Mon Sep 28 00:00:00 EDT 2015}

}

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Works referenced in this record:

Orbital fluctuation theory in iron-based superconductors: -wave superconductivity, structure transition, and impurity-induced nematic order
journal, April 2012

Kontani, Hiroshi; Inoue, Yoshio; Saito, Tetsuro
Solid State Communications, Vol. 152, Issue 8
DOI: 10.1016/j.ssc.2012.01.012

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

Fernandes, R. M.; Chubukov, A. V.; Schmalian, J.
Nature Physics, Vol. 10, Issue 2
DOI: 10.1038/nphys2877

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

Dai, Pengcheng; Hu, Jiangping; Dagotto, Elbio
Nature Physics, Vol. 8, Issue 10
DOI: 10.1038/nphys2438

Magnetically driven suppression of nematic order in an iron-based superconductor
journal, May 2014

Avci, S.; Chmaissem, O.; Allred, J. M.
Nature Communications, Vol. 5, Issue 1
DOI: 10.1038/ncomms4845

Structural, magnetic, and superconducting properties of Ba $_{1 - x}$ Na $_{x}$ Fe $_{2}$ As $_{2}$
journal, September 2013

Avci, S.; Allred, J. M.; Chmaissem, O.
Physical Review B, Vol. 88, Issue 9
DOI: 10.1103/PhysRevB.88.094510

Magnetoelastic coupling in the phase diagram of Ba $_{1 - x}$ K $_{x}$ Fe $_{2}$ As $_{2}$ as seen via neutron diffraction
journal, May 2011

Avci, S.; Chmaissem, O.; Goremychkin, E. A.
Physical Review B, Vol. 83, Issue 17
DOI: 10.1103/PhysRevB.83.172503

Spin reorientation in ${Ba}_{0.65} {Na}_{0.35} {Fe}_{2} {As}_{2}$ studied by single-crystal neutron diffraction
journal, February 2015

Waßer, F.; Schneidewind, A.; Sidis, Y.
Physical Review B, Vol. 91, Issue 6
DOI: 10.1103/PhysRevB.91.060505

Symmetry of reentrant tetragonal phase in ${Ba}_{1 - x} {Na}_{x} {Fe}_{2} {As}_{2}$ : Magnetic versus orbital ordering mechanism
journal, November 2014

Khalyavin, D. D.; Lovesey, S. W.; Manuel, P.
Physical Review B, Vol. 90, Issue 17
DOI: 10.1103/PhysRevB.90.174511

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

Nandi, S.; Kim, M. G.; Kreyssig, A.
Physical Review Letters, Vol. 104, Issue 5
DOI: 10.1103/PhysRevLett.104.057006

Superconductivity and Crystal Structures of (Ba _{1− x} K _x )Fe ₂ As ₂ ( x =0-1)
journal, September 2008

Rotter, Marianne; Pangerl, Michael; Tegel, Marcus
Angewandte Chemie International Edition, Vol. 47, Issue 41
DOI: 10.1002/anie.200803641

Phase diagram of Ba $_{1 - x}$ K $_{x}$ Fe $_{2}$ As $_{2}$
journal, May 2012

Avci, S.; Chmaissem, O.; Chung, D. Y.
Physical Review B, Vol. 85, Issue 18
DOI: 10.1103/PhysRevB.85.184507

EXPGUI , a graphical user interface for GSAS
journal, April 2001

Toby, Brian H.
Journal of Applied Crystallography, Vol. 34, Issue 2
DOI: 10.1107/S0021889801002242

Coincident structural and magnetic order in ${BaFe}_{2} {({As}_{1 - x} P_{x})}_{2}$ revealed by high-resolution neutron diffraction
journal, September 2014

Allred, J. M.; Taddei, K. M.; Bugaris, D. E.
Physical Review B, Vol. 90, Issue 10
DOI: 10.1103/PhysRevB.90.104513

Superconductivity-induced re-entrance of the orthorhombic distortion in Ba1−xKxFe2As2
journal, July 2015

Böhmer, A. E.; Hardy, F.; Wang, L.
Nature Communications, Vol. 6, Issue 1
DOI: 10.1038/ncomms8911

Pressure-induced Fermi-surface reconstruction in the iron-arsenide superconductor Ba $_{1 - x}$ K $_{x}$ Fe $_{2}$ As $_{2}$ : Evidence of a phase transition inside the antiferromagnetic phase
journal, October 2012

Hassinger, E.; Gredat, G.; Valade, F.
Physical Review B, Vol. 86, Issue 14
DOI: 10.1103/PhysRevB.86.140502

Extreme sensitivity of superconductivity to stoichiometry in ${Fe}_{1 + δ} Se$
journal, January 2009

McQueen, T. M.; Huang, Q.; Ksenofontov, V.
Physical Review B, Vol. 79, Issue 1
DOI: 10.1103/PhysRevB.79.014522

Works referencing / citing this record:

Electronic Properties and Fermi Surface for New Layered High-Temperature Superconductors CaAFe4As4 (A = K, Rb, and Cs): FLAPW-GGA Calculations
journal, November 2017

Suetin, D. V.; Shein, I. R.
Journal of Superconductivity and Novel Magnetism, Vol. 31, Issue 6
DOI: 10.1007/s10948-017-4404-y

Double-Q spin-density wave in iron arsenide superconductors
journal, January 2016

Allred, J. M.; Taddei, K. M.; Bugaris, D. E.
Nature Physics, Vol. 12, Issue 5
DOI: 10.1038/nphys3629

Strong spin resonance mode associated with suppression of soft magnetic ordering in hole-doped Ba1-xNaxFe2As2
journal, December 2019

Waßer, Florian; Park, Jitae T.; Aswartham, Saicharan
npj Quantum Materials, Vol. 4, Issue 1
DOI: 10.1038/s41535-019-0198-4

Strain tuning and anisotropic spin correlations in iron-based systems
journal, August 2019

Willa, Roland; Fritz, Max; Schmalian, Jörg
Physical Review B, Vol. 100, Issue 8
DOI: 10.1103/physrevb.100.085106

Experimental investigation of the suppressed superconducting gap and double-resonance mode in ${Ba}_{1 - x} K_{x} {Fe}_{2} {As}_{2}$
journal, December 2019

Ideta, S.; Murai, N.; Nakajima, M.
Physical Review B, Vol. 100, Issue 23
DOI: 10.1103/physrevb.100.235135

Preferred Magnetic Excitations in the Iron-Based ${Sr}_{1 - x} {Na}_{x} {Fe}_{2} {As}_{2}$ Superconductor
journal, January 2019

Guo, Jianqing; Yue, Li; Iida, Kazuki
Physical Review Letters, Vol. 122, Issue 1
DOI: 10.1103/physrevlett.122.017001

Double-Q spin-density wave in iron arsenide superconductors
text, January 2015

Allred, J. M.; Taddei, K. M.; Bugaris, D. E.
arXiv
DOI: 10.48550/arxiv.1505.06175

Strain tuning and anisotropic spin correlations in iron-based systems
text, January 2019

Willa, Roland; Fritz, Max; Schmalian, Jörg
arXiv
DOI: 10.48550/arxiv.1904.05583

Strong Spin Resonance Mode associated with suppression of soft magnetic ordering in Hole-doped Ba1-xNaxFe2As2
text, January 2019

Wasser, F.; Park, J. -T.; Aswartham, S.
arXiv
DOI: 10.48550/arxiv.1909.03046

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Title: Tetragonal magnetic phase in Ba 1 - x K x Fe 2 As 2 from x-ray and neutron diffraction

Abstract

Citation Formats

Orbital fluctuation theory in iron-based superconductors: -wave superconductivity, structure transition, and impurity-induced nematic order journal, April 2012

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

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

Magnetically driven suppression of nematic order in an iron-based superconductor journal, May 2014

Structural, magnetic, and superconducting properties of Ba 1 − x Na x Fe 2 As 2 journal, September 2013

Magnetoelastic coupling in the phase diagram of Ba 1 − x K x Fe 2 As 2 as seen via neutron diffraction journal, May 2011

Spin reorientation in Ba 0.65 Na 0.35 Fe 2 As 2 studied by single-crystal neutron diffraction journal, February 2015

Symmetry of reentrant tetragonal phase in Ba 1 − x Na x Fe 2 As 2 : Magnetic versus orbital ordering mechanism journal, November 2014

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

Superconductivity and Crystal Structures of (Ba 1− x K x )Fe 2 As 2 ( x =0-1) journal, September 2008

Phase diagram of Ba 1 − x K x Fe 2 As 2 journal, May 2012

EXPGUI , a graphical user interface for GSAS journal, April 2001

Coincident structural and magnetic order in BaFe 2 ( As 1 − x P x ) 2 revealed by high-resolution neutron diffraction journal, September 2014

Superconductivity-induced re-entrance of the orthorhombic distortion in Ba1−xKxFe2As2 journal, July 2015

Pressure-induced Fermi-surface reconstruction in the iron-arsenide superconductor Ba 1 − x K x Fe 2 As 2 : Evidence of a phase transition inside the antiferromagnetic phase journal, October 2012

Extreme sensitivity of superconductivity to stoichiometry in Fe 1 + δ Se journal, January 2009

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Title: Tetragonal magnetic phase in ${Ba}_{1 - x} K_{x} {Fe}_{2} {As}_{2}$ from x-ray and neutron diffraction

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What drives nematic order in iron-based superconductors?
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Magnetism and its microscopic origin in iron-based high-temperature superconductors
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Magnetically driven suppression of nematic order in an iron-based superconductor
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Structural, magnetic, and superconducting properties of Ba $_{1 - x}$ Na $_{x}$ Fe $_{2}$ As $_{2}$
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Magnetoelastic coupling in the phase diagram of Ba $_{1 - x}$ K $_{x}$ Fe $_{2}$ As $_{2}$ as seen via neutron diffraction
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Spin reorientation in ${Ba}_{0.65} {Na}_{0.35} {Fe}_{2} {As}_{2}$ studied by single-crystal neutron diffraction
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Symmetry of reentrant tetragonal phase in ${Ba}_{1 - x} {Na}_{x} {Fe}_{2} {As}_{2}$ : Magnetic versus orbital ordering mechanism
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Anomalous Suppression of the Orthorhombic Lattice Distortion in Superconducting $Ba ({Fe}_{1 - x} {Co}_{x})_{2} {As}_{2}$ Single Crystals
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