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Title: Hedgehog Spin-Vortex Crystal Antiferromagnetic Quantum Criticality in CaK ( Fe 1 - x Ni x ) 4 As 4 Revealed by NMR

Abstract

Two ordering states, antiferromagnetism and nematicity, have been observed in most iron-based superconductors (SCs). In contrast to those SCs, the newly discovered SC CaK(Fe 1-xNi x) 4As 4 exhibits an antiferromagnetic (AFM) state, called hedgehog spin-vortex crystal structure, without nematic order, providing the opportunity for the investigation into the relationship between spin fluctuations and SC without any effects of nematic fluctuations. Our 75As nuclear magnetic resonance studies on CaK(Fe 1-xNi x) 4As 4 (0≤ x ≤ 0.049) revealed that CaKFe 4As 4 is located close to a hidden hedgehog SVC AFM quantum-critical point (QCP). The magnetic QCP without nematicity in CaK(Fe 1-xNi x) 4As 4 highlights the close connection of spin fluctuations and superconductivity in iron-based SCs. The advantage of stoichiometric composition also makes CaKFe 4As 4 an ideal platform for further detailed investigation of the relationship between magnetic QCP and superconductivity in iron-based SCs without disorder effects.

Authors:
 [1];  [1];  [1];  [1];  [1];  [1];  [1];  [1]
  1. Ames Lab., Ames, IA (United States); Iowa State Univ., Ames, IA (United States)
Publication Date:
Research Org.:
Ames Lab., Ames, IA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
OSTI Identifier:
1477242
Alternate Identifier(s):
OSTI ID: 1473998
Report Number(s):
IS-J-9747
Journal ID: ISSN 0031-9007; PRLTAO
Grant/Contract Number:  
AC02-07CH11358; GBMF4411
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Volume: 121; Journal Issue: 13; Journal ID: ISSN 0031-9007
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS

Citation Formats

Ding, Q. -P., Meier, W. R., Cui, J., Xu, M., Böhmer, A. E., Bud’ko, S. L., Canfield, P. C., and Furukawa, Y. Hedgehog Spin-Vortex Crystal Antiferromagnetic Quantum Criticality in CaK(Fe1-xNix)4As4 Revealed by NMR. United States: N. p., 2018. Web. doi:10.1103/PhysRevLett.121.137204.
Ding, Q. -P., Meier, W. R., Cui, J., Xu, M., Böhmer, A. E., Bud’ko, S. L., Canfield, P. C., & Furukawa, Y. Hedgehog Spin-Vortex Crystal Antiferromagnetic Quantum Criticality in CaK(Fe1-xNix)4As4 Revealed by NMR. United States. doi:10.1103/PhysRevLett.121.137204.
Ding, Q. -P., Meier, W. R., Cui, J., Xu, M., Böhmer, A. E., Bud’ko, S. L., Canfield, P. C., and Furukawa, Y. Wed . "Hedgehog Spin-Vortex Crystal Antiferromagnetic Quantum Criticality in CaK(Fe1-xNix)4As4 Revealed by NMR". United States. doi:10.1103/PhysRevLett.121.137204. https://www.osti.gov/servlets/purl/1477242.
@article{osti_1477242,
title = {Hedgehog Spin-Vortex Crystal Antiferromagnetic Quantum Criticality in CaK(Fe1-xNix)4As4 Revealed by NMR},
author = {Ding, Q. -P. and Meier, W. R. and Cui, J. and Xu, M. and Böhmer, A. E. and Bud’ko, S. L. and Canfield, P. C. and Furukawa, Y.},
abstractNote = {Two ordering states, antiferromagnetism and nematicity, have been observed in most iron-based superconductors (SCs). In contrast to those SCs, the newly discovered SC CaK(Fe1-xNix)4As4 exhibits an antiferromagnetic (AFM) state, called hedgehog spin-vortex crystal structure, without nematic order, providing the opportunity for the investigation into the relationship between spin fluctuations and SC without any effects of nematic fluctuations. Our 75As nuclear magnetic resonance studies on CaK(Fe1-xNix)4As4 (0≤ x ≤ 0.049) revealed that CaKFe4As4 is located close to a hidden hedgehog SVC AFM quantum-critical point (QCP). The magnetic QCP without nematicity in CaK(Fe1-xNix)4As4 highlights the close connection of spin fluctuations and superconductivity in iron-based SCs. The advantage of stoichiometric composition also makes CaKFe4As4 an ideal platform for further detailed investigation of the relationship between magnetic QCP and superconductivity in iron-based SCs without disorder effects.},
doi = {10.1103/PhysRevLett.121.137204},
journal = {Physical Review Letters},
issn = {0031-9007},
number = 13,
volume = 121,
place = {United States},
year = {2018},
month = {9}
}

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Works referenced in this record:

Nodeless multiband superconductivity in stoichiometric single-crystalline CaKFe 4 As 4
journal, March 2017


Spin Susceptibility, Phase Diagram, and Quantum Criticality in the Eelctron-Doped High T c Superconductor Ba(Fe 1- x Co x ) 2 As 2
journal, January 2009

  • Ning, Fanlong; Ahilan, Kanagasingham; Imai, Takashi
  • Journal of the Physical Society of Japan, Vol. 78, Issue 1
  • DOI: 10.1143/JPSJ.78.013711

Anisotropic thermodynamic and transport properties of single-crystalline CaKFe 4 As 4
journal, August 2016


Antiferromagnetic order in CaK ( Fe 1 x Ni x ) 4 As 4 and its interplay with superconductivity
journal, June 2018


Avoided Quantum Criticality and Magnetoelastic Coupling in BaFe 2 x Ni x As 2
journal, June 2013


Unified Phase Diagram for Iron-Based Superconductors
journal, October 2017


Hidden T -Linear Scattering Rate in Ba 0.6 K 0.4 Fe 2 As 2 Revealed by Optical Spectroscopy
journal, September 2013


Contrasting Spin Dynamics between Underdoped and Overdoped Ba ( Fe 1 x Co x ) 2 As 2
journal, January 2010


Coexistence of Cluster Spin Glass and Superconductivity in Ba ( Fe 1 x Co x ) 2 As 2 for 0.060 x 0.071
journal, November 2013


Odd and Even Modes of Neutron Spin Resonance in the Bilayer Iron-Based Superconductor CaKFe 4 As 4
journal, June 2018


Enhancement of Superconductivity near a Nematic Quantum Critical Point
journal, March 2015


Hedgehog spin-vortex crystal stabilized in a hole-doped iron-based superconductor
journal, February 2018

  • Meier, William R.; Ding, Qing-Ping; Kreyssig, Andreas
  • npj Quantum Materials, Vol. 3, Issue 1
  • DOI: 10.1038/s41535-017-0076-x

The Effect of Electron-Electron Interaction on the Nuclear Spin Relaxation in Metals
journal, April 1963

  • Moriya, Tôru
  • Journal of the Physical Society of Japan, Vol. 18, Issue 4
  • DOI: 10.1143/JPSJ.18.516

Superconducting phases of f -electron compounds
journal, November 2009


A Quantum Critical Point Lying Beneath the Superconducting Dome in Iron Pnictides
journal, March 2014


The pseudogap: friend or foe of high T c ?
journal, December 2005


Quantum criticality
journal, February 2011

  • Sachdev, Subir; Keimer, Bernhard
  • Physics Today, Vol. 64, Issue 2
  • DOI: 10.1063/1.3554314

New-Structure-Type Fe-Based Superconductors: Ca A Fe 4 As 4 ( A = K, Rb, Cs) and Sr A Fe 4 As 4 ( A = Rb, Cs)
journal, March 2016

  • Iyo, Akira; Kawashima, Kenji; Kinjo, Tatsuya
  • Journal of the American Chemical Society, Vol. 138, Issue 10
  • DOI: 10.1021/jacs.5b12571

Signature of multigap nodeless superconductivity in CaKFe 4 As 4
journal, April 2017


Short-range cluster spin glass near optimal superconductivity in Ba Fe 2 x Ni x As 2
journal, July 2014


What lies beneath the dome?
journal, March 2008


Anomalous phonon behavior in superconducting CaKFe 4 As 4 : An optical study
journal, February 2017


Increasing stripe-type fluctuations in A Fe 2 As 2 ( A = K , Rb, Cs) superconductors probed by As 75 NMR spectroscopy
journal, March 2018


Anomalous superconducting state in LiFeAs implied by the 75 As Knight shift measurement
journal, April 2013


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


Spin-Fluctuation-Induced Non-Fermi-Liquid Behavior with Suppressed Superconductivity in LiFe 1 x Co x As
journal, September 2015


Magnetic fluctuations and superconducting properties of CaKFe 4 As 4 studied by As 75 NMR
journal, September 2017


Superconductivity in iron compounds
journal, December 2011


Muon spin rotation study of magnetism and superconductivity in Ba(Fe 1 x Co x ) 2 As 2 single crystals
journal, November 2012


Iron pnictides as a new setting for quantum criticality
journal, March 2009

  • Dai, J.; Si, Q.; Zhu, J. -X.
  • Proceedings of the National Academy of Sciences, Vol. 106, Issue 11
  • DOI: 10.1073/pnas.0900886106

Structural and Magnetic Phase Transitions near Optimal Superconductivity in BaFe 2 ( As 1 x P x ) 2
journal, April 2015


Unconventional Superconductivity and Antiferromagnetic Quantum Critical Behavior in the Isovalent-Doped BaFe 2 ( As 1 x P x ) 2
journal, September 2010


Nematic Quantum Critical Fluctuations in BaFe 2 x Ni x As 2
journal, October 2016


Competing order and nature of the pairing state in the iron pnictides
journal, July 2010


Emergent Kondo Lattice Behavior in Iron-Based Superconductors A Fe 2 As 2 ( A = K , Rb, Cs)
journal, April 2016


Gap symmetry and structure of Fe-based superconductors
journal, October 2011


Enhancement of the Superconducting Gap by Nesting in CaKFe 4 As 4 : A New High Temperature Superconductor
journal, December 2016


Quantum criticality in electron-doped BaFe2−xNixAs2
journal, August 2013

  • Zhou, R.; Li, Z.; Yang, J.
  • Nature Communications, Vol. 4, Issue 1
  • DOI: 10.1038/ncomms3265

Ising Nematic Quantum Critical Point in a Metal: A Monte Carlo Study
journal, August 2016


Spin Resonance in the New-Structure-Type Iron-Based Superconductor CaKFe 4 As 4
journal, September 2017

  • Iida, Kazuki; Ishikado, Motoyuki; Nagai, Yuki
  • Journal of the Physical Society of Japan, Vol. 86, Issue 9
  • DOI: 10.7566/JPSJ.86.093703

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