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Title: Atomic-scale electronic structure of the cuprate d-symmetry form factor density wave state

Research on high-temperature superconducting cuprates is at present focused on identifying the relationship between the classic ‘pseudogap’ phenomenon1, 2 and the more recently investigated density wave state3–13. This state is generally characterized by a wavevector Q parallel to the planar Cu–O–Cu bonds 4–13 along with a predominantly d-symmetry form factor 14–17 (dFF-DW). To identify the microscopic mechanism giving rise to this state 18–30, one must identify the momentum-space states contributing to the dFF-DW spectral weight, determine their particle–hole phase relationship about the Fermi energy, establish whether they exhibit a characteristic energy gap, and understand the evolution of all these phenomena throughout the phase diagram. Here we use energy-resolved sublattice visualization14 of electronic structure and reveal that the characteristic energy of the dFF-DW modulations is actually the ‘pseudogap’ energy Δ1. Moreover, we demonstrate that the dFF-DW modulations at E = –Δ1 (filled states) occur with relative phase π compared to those at E = Δ1 (empty states). Lastly, we show that the conventionally defined dFF-DW Q corresponds to scattering between the ‘hot frontier’ regions of momentum-space beyond which Bogoliubov quasiparticles cease to exist30–32. These data indicate that the cuprate dFF-DW state involves particle–hole interactions focused at the pseudogap energy scale andmore » between the four pairs of ‘hot frontier’ regions in momentum space where the pseudogap opens.« less
Authors:
;  [1] ;  [2] ;  [3] ;  [4] ;  [5] ;  [6] ;  [7] ;  [8] ;  [9] ;  [1]
  1. Brookhaven National Lab. (BNL), Upton, NY (United States)
  2. Cornell Univ., Ithaca, NY (United States); Univ. of St. Andrews, Scotland (United Kingdom)
  3. Cornell Univ., Ithaca, NY (United States); Univ. of St. Andrews, Scotland (United Kingdom); Brookhaven National Lab. (BNL), Upton, NY (United States)
  4. Univ. of St. Andrews, Scotland (United Kingdom); Max-Planck Institute for Chemical Physics of Solids, Dresden (Germany)
  5. Institute of Advanced Industrial Science and Technology, Ibaraki (Japan)
  6. Univ. of Tokyo, Tokyo (Japan)
  7. Cornell Univ., Ithaca, NY (United States); Binghamton Univ., Binghamton, NY (United States)
  8. Cornell Univ., Ithaca, NY (United States)
  9. Harvard Univ., Cambridge, MA (United States); Perimeter Institute for Theoretical Physics, Waterloo, ON (Canada)
Publication Date:
OSTI Identifier:
1246796
Report Number(s):
BNL--111972-2016-JA
Journal ID: ISSN 1745-2473; R&D Project: PO016; PM007; KC0202020; KC0201010
Grant/Contract Number:
SC00112704
Type:
Accepted Manuscript
Journal Name:
Nature Physics
Additional Journal Information:
Journal Volume: 12; Journal Issue: 2; Journal ID: ISSN 1745-2473
Publisher:
Nature Publishing Group (NPG)
Research Org:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
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 electronic properties and materials; superconducting properties and materials