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Title: Antiferromagnetic order in CaK ( Fe 1 x Ni x ) 4 As 4 and its interplay with superconductivity

Abstract

The magnetic order in CaK(Fe1-xNix)4As4 (1144) single crystals (x=0.051 and 0.033) has been studied by neutron diffraction. We observe magnetic Bragg peaks associated with the same propagation vectors as found for the collinear stripe antiferromagnetic (AFM) order in the related BaFe2As2 (122) compound. The AFM state in 1144 preserves tetragonal symmetry and only a commensurate, noncollinear structure with a hedgehog spin-vortex crystal (SVC) arrangement in the Fe plane and simple AFM stacking along the c direction is consistent with our observations. The SVC order is promoted by the reduced symmetry in the FeAs layer in the 1144 structure. The long-range SVC order coexists with superconductivity, however, similar to the doped 122 compounds, the ordered magnetic moment is gradually suppressed with the developing superconducting order parameter. This supports the notion that both collinear and noncollinear magnetism and superconductivity are competing for the same electrons coupled by Fermi surface nesting in iron arsenide superconductors.

Authors:
 [1];  [1];  [1]; ORCiD logo [2];  [1];  [1];  [1];  [1];  [1];  [1];  [1];  [1]
  1. Ames Lab. and Iowa State Univ., Ames, IA (United States)
  2. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Publication Date:
Research Org.:
Ames Lab., Ames, IA (United States); Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
OSTI Identifier:
1460401
Alternate Identifier(s):
OSTI ID: 1457574; OSTI ID: 1468098
Report Number(s):
IS-J-9703
Journal ID: ISSN 2469-9950; PRBMDO; TRN: US1901876
Grant/Contract Number:  
AC02-07CH11358; AC02-06CH11357; GBMF4411; AC05-00OR22725
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review B
Additional Journal Information:
Journal Volume: 97; Journal Issue: 22; 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

Kreyssig, A., Wilde, John M., Bohmer, A. E., Tian, Wei, Meier, W. R., Li, Bing, Ueland, B. G., Xu, Mingyu, Bud'ko, Sergey L., Canfield, Paul C., McQueeney, R. J., and Goldman, A. I. Antiferromagnetic order in CaK(Fe1–xNix)4As4 and its interplay with superconductivity. United States: N. p., 2018. Web. doi:10.1103/PhysRevB.97.224521.
Kreyssig, A., Wilde, John M., Bohmer, A. E., Tian, Wei, Meier, W. R., Li, Bing, Ueland, B. G., Xu, Mingyu, Bud'ko, Sergey L., Canfield, Paul C., McQueeney, R. J., & Goldman, A. I. Antiferromagnetic order in CaK(Fe1–xNix)4As4 and its interplay with superconductivity. United States. doi:10.1103/PhysRevB.97.224521.
Kreyssig, A., Wilde, John M., Bohmer, A. E., Tian, Wei, Meier, W. R., Li, Bing, Ueland, B. G., Xu, Mingyu, Bud'ko, Sergey L., Canfield, Paul C., McQueeney, R. J., and Goldman, A. I. Thu . "Antiferromagnetic order in CaK(Fe1–xNix)4As4 and its interplay with superconductivity". United States. doi:10.1103/PhysRevB.97.224521. https://www.osti.gov/servlets/purl/1460401.
@article{osti_1460401,
title = {Antiferromagnetic order in CaK(Fe1–xNix)4As4 and its interplay with superconductivity},
author = {Kreyssig, A. and Wilde, John M. and Bohmer, A. E. and Tian, Wei and Meier, W. R. and Li, Bing and Ueland, B. G. and Xu, Mingyu and Bud'ko, Sergey L. and Canfield, Paul C. and McQueeney, R. J. and Goldman, A. I.},
abstractNote = {The magnetic order in CaK(Fe1-xNix)4As4 (1144) single crystals (x=0.051 and 0.033) has been studied by neutron diffraction. We observe magnetic Bragg peaks associated with the same propagation vectors as found for the collinear stripe antiferromagnetic (AFM) order in the related BaFe2As2 (122) compound. The AFM state in 1144 preserves tetragonal symmetry and only a commensurate, noncollinear structure with a hedgehog spin-vortex crystal (SVC) arrangement in the Fe plane and simple AFM stacking along the c direction is consistent with our observations. The SVC order is promoted by the reduced symmetry in the FeAs layer in the 1144 structure. The long-range SVC order coexists with superconductivity, however, similar to the doped 122 compounds, the ordered magnetic moment is gradually suppressed with the developing superconducting order parameter. This supports the notion that both collinear and noncollinear magnetism and superconductivity are competing for the same electrons coupled by Fermi surface nesting in iron arsenide superconductors.},
doi = {10.1103/PhysRevB.97.224521},
journal = {Physical Review B},
number = 22,
volume = 97,
place = {United States},
year = {2018},
month = {6}
}

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Cited by: 15 works
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Figures / Tables:

FIG. 1: FIG. 1:: (Color online) Chemical and antiferromagnetic structure of CaK(Fe1−xNix)4As4. (a) Antiferromagnetic tetragonal unit cell with aM, bM, and cM which is doubled and 45° rotated in the (ab) plane with respect to the chemical unit cell with a, b, and c. The arrows represent the antiferromagnetically ordered Fe moments.more » (b) Arrangement of the magnetic Fe moments in a FeAs layer.« less

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Works referenced in this record:

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journal, April 2018


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    Works referencing / citing this record:

    Effect of pressure on the self-hole-doped superconductor RbGd 2 Fe 4 As 4 O 2
    journal, December 2018

    • Sun, J. P.; Wang, Z-C; Liu, Z. Y.
    • Journal of Physics: Condensed Matter, Vol. 31, Issue 4
    • DOI: 10.1088/1361-648x/aaf0b9

    Superconductivity and magnetism in RbEu(Fe 1− x Co x ) 4 As 4
    journal, January 2020

    • Liu, Ya-Bin; Liu, Yi; Cui, Yan-Wei
    • Journal of Physics: Condensed Matter, Vol. 32, Issue 17
    • DOI: 10.1088/1361-648x/ab68f4

    Observation of two collapsed phases in CaRbF e 4 A s 4
    journal, July 2019


    Effect of Ni doping on vortex pinning in CaK ( F e 1 − x N i x ) 4 A s 4 single crystals
    journal, August 2019


    Analysis of the London penetration depth in Ni-doped CaKFe 4 As 4
    journal, September 2019


    Coexistence of superconductivity and magnetism in CaK ( Fe 1 x Ni x ) 4 As 4 as probed by 57 Fe Mössbauer spectroscopy
    journal, October 2018


    Hedgehog Spin-Vortex Crystal Antiferromagnetic Quantum Criticality in CaK ( Fe 1 x Ni x ) 4 As 4 Revealed by NMR
    journal, September 2018


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