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Title: Persistent low-energy phonon broadening near the charge-order q vector in the bilayer cuprate Bi 2 Sr 2 CaCu 2 O 8 + δ

Here, we report a persistent low-energy phonon broadening around q B ~ 0.28 reciprocal lattice unit (r.l.u.) along the Cu-O bond direction in the high- T c cuprate Bi 2Sr 2CaCu 2O 8+δ (Bi-2212). We show that such broadening exists both inside and outside the conventional charge-density wave (CDW) phase, via temperature-dependent measurements in both underdoped and heavily overdoped samples. Combining inelastic hard x-ray scattering, diffuse scattering, angle-resolved photoemission spectroscopy, and resonant soft x-ray scattering at the Cu L 3 -edge, we exclude the presence of a CDW in the heavily overdoped Bi-2212 similar to that observed in the underdoped systems. Finally, we discuss the origin of such anisotropic low-energy phonon broadening and its potential precursory role to the CDW phase in the underdoped region.
Authors:
 [1] ;  [2] ;  [2] ;  [3] ;  [4] ;  [4] ;  [5] ;  [5] ;  [5] ;  [2] ;  [3] ;  [6] ;  [7] ;  [7] ;  [8] ;  [8] ;  [8] ;  [8] ;  [8] ;  [9] more »;  [9] ;  [9] ;  [3] ;  [2] ;  [2] ;  [10] « less
  1. Stanford Univ., CA (United States). Dept. of Applied Physics; SLAC National Accelerator Lab., Menlo Park, CA (United States). Stanford Institute for Materials and Energy Science (SIMES)
  2. Univ. of California, Berkeley, CA (United States). Dept. of Physics
  3. SLAC National Accelerator Lab., Menlo Park, CA (United States). Stanford Institute for Materials and Energy Science (SIMES)
  4. Argonne National Lab. (ANL), Argonne, IL (United States). Advanced Photon Source (APS)
  5. European Synchrotron Radiation Facility (ESRF), Grenoble (France)
  6. Max Planck Inst. for Solid State Research, Stuttgart (Germany); Helmholtz-Center Berlin (HZB), (Germany). German Research Center for Materials and Energy
  7. Helmholtz-Center Berlin (HZB), (Germany). German Research Center for Materials and Energy
  8. SLAC National Accelerator Lab., Menlo Park, CA (United States). Stanford Synchrotron Radiation Lightsource (SSRL)
  9. National Inst. of Advanced Industrial Science and Technology (AIST), Tsukuba (Japan)
  10. Univ. of California, San Diego, CA (United States). Dept. of Physics
Publication Date:
Grant/Contract Number:
AC02-76SF00515; AC02-05CH11231; AC02-06CH11357; ECCS-1542152
Type:
Accepted Manuscript
Journal Name:
Physical Review B
Additional Journal Information:
Journal Volume: 98; Journal Issue: 3; Journal ID: ISSN 2469-9950
Publisher:
American Physical Society (APS)
Research Org:
Stanford Univ., CA (United States); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); SLAC National Accelerator Lab., Menlo Park, CA (United States); Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22). Materials Sciences & Engineering Division; National Science Foundation (NSF); L'Oreal-UNESCO For Women in Science Awards
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; high temperature superconductivity; charge density wave; phonon broadening; phonons; superconductivity; cuprates; strongly correlated systems; x-ray scattering
OSTI Identifier:
1458514
Alternate Identifier(s):
OSTI ID: 1458590