skip to main content

DOE PAGESDOE PAGES

Title: Commensurate 4 a 0 -period charge density modulations throughout the Bi 2 Sr 2 CaCu 2 O 8+x pseudogap regime

Theories based upon strong real space (r-space) electron–electron interactions have long predicted that unidirectional charge density modulations (CDMs) with four-unit-cell (4a0) periodicity should occur in the hole-doped cuprate Mott insulator (MI). But, increasing the hole density p is reported to cause the conventionally defined wavevector QA of the CDM to evolve continuously as if driven primarily by momentum-space (k-space) effects. We introduce phase-resolved electronic structure visualization for determination of the cuprate CDM wavevector. Remarkably, this technique reveals a virtually doping-independent locking of the local CDM wavevector at |Q0|=2π/4a0 throughout the underdoped phase diagram of the canonical cuprate Bi2Sr2CaCu2O8. Our observations have significant fundamental consequences because they are orthogonal to a k-space (Fermi-surface)–based picture of the cuprate CDMs but are consistent with strong-coupling r-space–based theories. Our findings imply that it is the latter that provides the intrinsic organizational principle for the cuprate CDM state.
Authors:
 [1] ;  [2] ;  [3] ;  [4] ;  [5] ;  [6] ;  [7] ;  [8] ;  [1]
  1. Cornell Univ., Ithaca, NY (United States). Dept. of Physics
  2. Brookhaven National Lab. (BNL), Upton, NY (United States). Condensed Matter Physics and Materials Science Dept.
  3. Cornell Univ., Ithaca, NY (United States). Dept. of Physics; Univ. of St. Andrews, Scotland (United Kingdom). School of Physics and Astronomy
  4. Harvard Univ., Cambridge, MA (United States). Dept. of Physics; Univ. of California, Davis, CA (United States). Dept. of Physics
  5. National Inst. of Advanced Industrial Science and Technology (AIST), Tsukuba (Japan). Electronics and Photonics Research Inst.
  6. National Inst. of Advanced Industrial Science and Technology (AIST), Tsukuba (Japan). Electronics and Photonics Research Inst.; Univ. of Tokyo (Japan). Dept. of Physics
  7. Cornell Univ., Ithaca, NY (United States). Dept. of Physics; Brookhaven National Lab. (BNL), Upton, NY (United States). Condensed Matter Physics and Materials Science Dept.; Univ. of St. Andrews, Scotland (United Kingdom). School of Physics and Astronomy; Univ. College Cork (Ireland). Tyndall National Inst.
  8. Cornell Univ., Ithaca, NY (United States). Dept. of Physics; Binghamton Univ., NY (United States). Dept. of Physics
Publication Date:
OSTI Identifier:
1342648
Report Number(s):
BNL--113463-2017-JA
Journal ID: ISSN 0027-8424; R&D Project: PM007; KC0201010
Grant/Contract Number:
SC00112704; SC0010313; 2009-BNL-PM015
Type:
Accepted Manuscript
Journal Name:
Proceedings of the National Academy of Sciences of the United States of America
Additional Journal Information:
Journal Volume: 113; Journal Issue: 45; Journal ID: ISSN 0027-8424
Publisher:
National Academy of Sciences, Washington, DC (United States)
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 CuO2 pseudogap; commensurate charge density modulation; phase discommensuration