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Title: Novel electronic nematicity in heavily hole-doped iron pnictide superconductors

Abstract

Electronic nematicity, a correlated state that spontaneously breaks rotational symmetry, is observed in several layered quantum materials. In contrast to their liquid-crystal counterparts, the nematic director cannot usually point in an arbitrary direction (XY nematics), but is locked by the crystal to discrete directions (Ising nematics), resulting in strongly anisotropic fluctuations above the transition. Here, we report on the observation of nearly isotropic XY-nematic fluctuations, via elastoresistance measurements, in hole-doped Ba 1− x Rb x Fe 2 As 2 iron-based superconductors. While for x = 0 , the nematic director points along the in-plane diagonals of the tetragonal lattice, for x = 1 , it points along the horizontal and vertical axes. Remarkably, for intermediate doping, the susceptibilities of these two symmetry-irreducible nematic channels display comparable Curie–Weiss behavior, thus revealing a nearly XY-nematic state. This opens a route to assess this elusive electronic quantum liquid-crystalline state.

Authors:
; ; ; ; ; ; ; ; ; ; ; ORCiD logo
Publication Date:
Sponsoring Org.:
USDOE
OSTI Identifier:
1604261
Grant/Contract Number:  
SC0012336
Resource Type:
Published Article
Journal Name:
Proceedings of the National Academy of Sciences of the United States of America
Additional Journal Information:
Journal Name: Proceedings of the National Academy of Sciences of the United States of America Journal Volume: 117 Journal Issue: 12; Journal ID: ISSN 0027-8424
Publisher:
Proceedings of the National Academy of Sciences
Country of Publication:
United States
Language:
English

Citation Formats

Ishida, Kousuke, Tsujii, Masaya, Hosoi, Suguru, Mizukami, Yuta, Ishida, Shigeyuki, Iyo, Akira, Eisaki, Hiroshi, Wolf, Thomas, Grube, Kai, v. Löhneysen, Hilbert, Fernandes, Rafael M., and Shibauchi, Takasada. Novel electronic nematicity in heavily hole-doped iron pnictide superconductors. United States: N. p., 2020. Web. doi:10.1073/pnas.1909172117.
Ishida, Kousuke, Tsujii, Masaya, Hosoi, Suguru, Mizukami, Yuta, Ishida, Shigeyuki, Iyo, Akira, Eisaki, Hiroshi, Wolf, Thomas, Grube, Kai, v. Löhneysen, Hilbert, Fernandes, Rafael M., & Shibauchi, Takasada. Novel electronic nematicity in heavily hole-doped iron pnictide superconductors. United States. doi:10.1073/pnas.1909172117.
Ishida, Kousuke, Tsujii, Masaya, Hosoi, Suguru, Mizukami, Yuta, Ishida, Shigeyuki, Iyo, Akira, Eisaki, Hiroshi, Wolf, Thomas, Grube, Kai, v. Löhneysen, Hilbert, Fernandes, Rafael M., and Shibauchi, Takasada. Thu . "Novel electronic nematicity in heavily hole-doped iron pnictide superconductors". United States. doi:10.1073/pnas.1909172117.
@article{osti_1604261,
title = {Novel electronic nematicity in heavily hole-doped iron pnictide superconductors},
author = {Ishida, Kousuke and Tsujii, Masaya and Hosoi, Suguru and Mizukami, Yuta and Ishida, Shigeyuki and Iyo, Akira and Eisaki, Hiroshi and Wolf, Thomas and Grube, Kai and v. Löhneysen, Hilbert and Fernandes, Rafael M. and Shibauchi, Takasada},
abstractNote = {Electronic nematicity, a correlated state that spontaneously breaks rotational symmetry, is observed in several layered quantum materials. In contrast to their liquid-crystal counterparts, the nematic director cannot usually point in an arbitrary direction (XY nematics), but is locked by the crystal to discrete directions (Ising nematics), resulting in strongly anisotropic fluctuations above the transition. Here, we report on the observation of nearly isotropic XY-nematic fluctuations, via elastoresistance measurements, in hole-doped Ba 1− x Rb x Fe 2 As 2 iron-based superconductors. While for x = 0 , the nematic director points along the in-plane diagonals of the tetragonal lattice, for x = 1 , it points along the horizontal and vertical axes. Remarkably, for intermediate doping, the susceptibilities of these two symmetry-irreducible nematic channels display comparable Curie–Weiss behavior, thus revealing a nearly XY-nematic state. This opens a route to assess this elusive electronic quantum liquid-crystalline state.},
doi = {10.1073/pnas.1909172117},
journal = {Proceedings of the National Academy of Sciences of the United States of America},
number = 12,
volume = 117,
place = {United States},
year = {2020},
month = {3}
}

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Works referenced in this record:

Evolution of quasiparticle excitations with enhanced electron correlations in superconducting A Fe 2 As 2 ( A = K , Rb, and Cs)
journal, July 2016


Evolution from B 2 g Nematics to B 1 g Nematics in Heavily Hole-Doped Iron-Based Superconductors
journal, September 2019


Broken mirror symmetry, incommensurate spin correlations, and B 2 g nematic order in iron pnictides
journal, September 2019


Origin of diverse nematic orders in Fe-based superconductors: 45 rotated nematicity in A Fe 2 As 2 ( A = Cs , Rb )
journal, July 2019


Selective Mott Physics as a Key to Iron Superconductors
journal, April 2014


Broken rotational symmetry in the pseudogap phase of a high-Tc superconductor
journal, January 2010


Possible bicollinear nematic state with monoclinic lattice distortions in iron telluride compounds
journal, July 2017


Pairing instability in a nematic Fermi liquid
journal, April 2004


Quantum theory of a nematic Fermi fluid
journal, October 2001


Scaling between Magnetic and Lattice Fluctuations in Iron Pnictide Superconductors
journal, September 2013


Thermodynamic evidence for a nematic phase transition at the onset of the pseudogap in YBa2Cu3Oy
journal, July 2017

  • Sato, Y.; Kasahara, S.; Murayama, H.
  • Nature Physics, Vol. 13, Issue 11
  • DOI: 10.1038/nphys4205

Nearly critical spin and charge fluctuations in KFe 2 As 2 observed by high-pressure NMR
journal, February 2016


Multiscale quantum criticality: Pomeranchuk instability in isotropic metals
journal, October 2009


Superconductivity Emerging from an Electronic Phase Separation in the Charge Ordered Phase of RbFe 2 As 2
journal, November 2016


Evidence of nematic order and nodal superconducting gap along [110] direction in RbFe2As2
journal, March 2019


Strong correlations, strong coupling, and s -wave superconductivity in hole-doped BaFe 2 As 2 single crystals
journal, November 2016


Divergent Nematic Susceptibility in an Iron Arsenide Superconductor
journal, August 2012


Electronic liquid-crystal phases of a doped Mott insulator
journal, June 1998

  • Kivelson, S. A.; Fradkin, E.; Emery, V. J.
  • Nature, Vol. 393, Issue 6685
  • DOI: 10.1038/31177

Electronic nematicity above the structural and superconducting transition in BaFe2(As1−xP x )2
journal, June 2012

  • Kasahara, S.; Shi, H. J.; Hashimoto, K.
  • Nature, Vol. 486, Issue 7403
  • DOI: 10.1038/nature11178

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

Evidence for an Anisotropic State of Two-Dimensional Electrons in High Landau Levels
journal, January 1999


Sign-reversal of the in-plane resistivity anisotropy in hole-doped iron pnictides
journal, May 2013

  • Blomberg, E. C.; Tanatar, M. A.; Fernandes, R. M.
  • Nature Communications, Vol. 4, Issue 1
  • DOI: 10.1038/ncomms2933

In-Plane Resistivity Anisotropy in an Underdoped Iron Arsenide Superconductor
journal, August 2010


Electronic Liquid Crystal State in the High-Temperature Superconductor YBa2Cu3O6.45
journal, January 2008


Nematic Fermi Fluids in Condensed Matter Physics
journal, August 2010


Possible nodal superconducting gap and Lifshitz transition in heavily hole-doped Ba 0.1 K 0.9 Fe 2 As 2
journal, December 2013


Rotational Symmetry Breaking in the Hidden-Order Phase of URu2Si2
journal, January 2011


Ubiquitous signatures of nematic quantum criticality in optimally doped Fe-based superconductors
journal, May 2016


Evidence of Strong Correlations and Coherence-Incoherence Crossover in the Iron Pnictide Superconductor KFe 2 As 2
journal, July 2013


Nematic quantum critical point without magnetism in FeSe 1− x S x superconductors
journal, July 2016

  • Hosoi, Suguru; Matsuura, Kohei; Ishida, Kousuke
  • Proceedings of the National Academy of Sciences, Vol. 113, Issue 29
  • DOI: 10.1073/pnas.1605806113

Microscopic nature of correlations in multiorbital A Fe 2 As 2 ( A = K , Rb , Cs ) : Hund's coupling versus Coulomb repulsion
journal, November 2015


Double-stage nematic bond ordering above double stripe magnetism: Application to BaTi 2 Sb 2 O
journal, May 2017


Superconductivity and non-Fermi liquid behavior near a nematic quantum critical point
journal, April 2017

  • Lederer, Samuel; Schattner, Yoni; Berg, Erez
  • Proceedings of the National Academy of Sciences, Vol. 114, Issue 19
  • DOI: 10.1073/pnas.1620651114

Criterion for stability of Goldstone modes and Fermi liquid behavior in a metal with broken symmetry
journal, October 2014

  • Watanabe, Haruki; Vishwanath, Ashvin
  • Proceedings of the National Academy of Sciences, Vol. 111, Issue 46
  • DOI: 10.1073/pnas.1415592111

Strain-Driven Approach to Quantum Criticality in A Fe 2 As 2 with A = K , Rb, and Cs
journal, June 2016