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Commensurate antiferromagnetic excitations as a signature of the pseudogap in the tetragonal high-Tc cuprate HgBa2CuO4+δ

Journal Article · · Nature Communications
DOI:https://doi.org/10.1038/ncomms10819· OSTI ID:1259490
 [1];  [2];  [3];  [2];  [2];  [2];  [2];  [4];  [5];  [6];  [3];  [7];  [5];  [3];  [2]
  1. Univ. of Minnesota, Minneapolis, MN (United States); Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  2. Univ. of Minnesota, Minneapolis, MN (United States)
  3. CEA-CNRS, Gif sur Yvette (France)
  4. Univ. of Minnesota, Minneapolis, MN (United States); Jilin Univ., Changchun (China)
  5. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  6. Neutron source Heinz Maier-Leibnitz (FRM II), Garching (Germany)
  7. Inst. Laue-Langevin (ILL), Grenoble (France)

We report that antiferromagnetic correlations have been argued to be the cause of the d-wave superconductivity and the pseudogap phenomena exhibited by the cuprates. Although the antiferromagnetic response in the pseudogap state has been reported for a number of compounds, there exists no information for structurally simple HgBa2CuO4+δ. We report neutron-scattering results for HgBa2CuO4+δ (superconducting transition temperature Tc≈71 K, pseudogap temperature T*≈305 K) that demonstrate the absence of the two most prominent features of the magnetic excitation spectrum of the cuprates: the X-shaped ‘hourglass’ response and the resonance mode in the superconducting state. Instead, the response is Y-shaped, gapped and significantly enhanced below T*, and hence a prominent signature of the pseudogap state.

Research Organization:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
Grant/Contract Number:
SC0006858; FG02-08ER46544
OSTI ID:
1259490
Alternate ID(s):
OSTI ID: 1287028
Journal Information:
Nature Communications, Journal Name: Nature Communications Vol. 7; ISSN 2041-1723
Publisher:
Nature Publishing GroupCopyright Statement
Country of Publication:
United States
Language:
English

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Cited By (16)

Doping-dependent charge order correlations in electron-doped cuprates journal August 2016
Single reconstructed Fermi surface pocket in an underdoped single layer cuprate superconductor text January 2016
Photoemission perspective on pseudogap, superconducting fluctuations, and charge order in cuprates: a review of recent progress journal April 2018
Anomalies in the pseudogap phase of the cuprates: competing ground states and the role of umklapp scattering journal October 2019
Magnetic susceptibility and simulated neutron signal in the two-dimensional Hubbard model journal August 2019
Bond particle theory for the pseudogap phase of underdoped cuprates journal August 2019
Effective SU(2) theory for the pseudogap state journal March 2017
Origin of kinks in the energy dispersion of strongly correlated matter journal April 2017
Controlling Feynman diagrammatic expansions: Physical nature of the pseudogap in the two-dimensional Hubbard model journal July 2017
Synchrotron x-ray scattering study of charge-density-wave order in HgBa 2 CuO 4 + δ journal October 2017
Low-energy antiferromagnetic spin fluctuations limit the coherent superconducting gap in cuprates journal December 2018
Unusual behavior of cuprates explained by heterogeneous charge localization journal January 2019
Synchrotron X-Ray Scattering Study of Charge-Density-Wave Order in $HgBa_{2}CuO_{4+δ}$ text January 2017
Low-energy antiferromagnetic spin fluctuations limit the coherent superconducting gap in cuprates text January 2018
Bond particle theory for the pseudogap phase of underdoped cuprates text January 2019
Doping-dependent charge order correlations in electron-doped cuprates text January 2016

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