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Title: Commensurate antiferromagnetic excitations as a signature of the pseudogap in the tetragonal high-T c cuprate HgBa 2CuO 4+δ

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 HgBa 2CuO 4+δ. We report neutron-scattering results for HgBa 2CuO 4+δ (superconducting transition temperature T c≈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.
Authors:
 [1] ;  [2] ;  [3] ;  [2] ;  [2] ;  [2] ;  [2] ;  [4] ;  [5] ;  [6] ;  [3] ;  [7] ;  [5] ; ORCiD logo [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)
Publication Date:
Grant/Contract Number:
SC0006858; LANLF100; FG02-08ER46544; ANR-14-CE05-0007; ANR-14-OHRI-0010; AC05-00OR22725
Type:
Accepted Manuscript
Journal Name:
Nature Communications
Additional Journal Information:
Journal Volume: 7; Journal ID: ISSN 2041-1723
Publisher:
Nature Publishing Group
Research Org:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Spallation Neutron Source (SNS)
Sponsoring Org:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY
OSTI Identifier:
1259490
Alternate Identifier(s):
OSTI ID: 1287028

Chan, M. K., Dorow, C. J., Mangin-Thro, L., Tang, Y., Ge, Y., Veit, M. J., Yu, G., Zhao, X., Christianson, A. D., Park, J. T., Sidis, Y., Steffens, P., Abernathy, D. L., Bourges, P., and Greven, M.. Commensurate antiferromagnetic excitations as a signature of the pseudogap in the tetragonal high-Tc cuprate HgBa2CuO4+δ. United States: N. p., Web. doi:10.1038/ncomms10819.
Chan, M. K., Dorow, C. J., Mangin-Thro, L., Tang, Y., Ge, Y., Veit, M. J., Yu, G., Zhao, X., Christianson, A. D., Park, J. T., Sidis, Y., Steffens, P., Abernathy, D. L., Bourges, P., & Greven, M.. Commensurate antiferromagnetic excitations as a signature of the pseudogap in the tetragonal high-Tc cuprate HgBa2CuO4+δ. United States. doi:10.1038/ncomms10819.
Chan, M. K., Dorow, C. J., Mangin-Thro, L., Tang, Y., Ge, Y., Veit, M. J., Yu, G., Zhao, X., Christianson, A. D., Park, J. T., Sidis, Y., Steffens, P., Abernathy, D. L., Bourges, P., and Greven, M.. 2016. "Commensurate antiferromagnetic excitations as a signature of the pseudogap in the tetragonal high-Tc cuprate HgBa2CuO4+δ". United States. doi:10.1038/ncomms10819. https://www.osti.gov/servlets/purl/1259490.
@article{osti_1259490,
title = {Commensurate antiferromagnetic excitations as a signature of the pseudogap in the tetragonal high-Tc cuprate HgBa2CuO4+δ},
author = {Chan, M. K. and Dorow, C. J. and Mangin-Thro, L. and Tang, Y. and Ge, Y. and Veit, M. J. and Yu, G. and Zhao, X. and Christianson, A. D. and Park, J. T. and Sidis, Y. and Steffens, P. and Abernathy, D. L. and Bourges, P. and Greven, M.},
abstractNote = {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.},
doi = {10.1038/ncomms10819},
journal = {Nature Communications},
number = ,
volume = 7,
place = {United States},
year = {2016},
month = {3}
}