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Title: Quasiparticle dynamics across the full Brillouin zone of Bi2Sr2CaCu2O8+δ traced with ultrafast time and angle-resolved photoemission spectroscopy

Journal Article · · Structural Dynamics
DOI:https://doi.org/10.1063/1.4933133· OSTI ID:1240592
 [1];  [2];  [3];  [4];  [5];  [1];  [6];  [1]
  1. Los Alamos National Lab. (LANL), Los Alamos, NM (United States). Center for Integrated Nanotechnologies (CINT)
  2. Los Alamos National Lab. (LANL), Los Alamos, NM (United States). Condensed Matter and Magnet Science, Materials Physics and Applications Division;
  3. Los Alamos National Lab. (LANL), Los Alamos, NM (United States). Physics of Condensed Matter and Complex Systems, Theoretical Division
  4. Temple University, Philadelphia, PA (United States). Department of Physics
  5. Brookhaven National Lab. (BNL), Upton, NY (United States). Condensed Matter Physics and Materials Science
  6. Los Alamos National Lab. (LANL), Los Alamos, NM (United States). Materials Physics and Applications

A hallmark in the cuprate family of high-temperature superconductors is the nodal-antinodal dichotomy. In this regard, angle-resolved photoemission spectroscopy (ARPES) has proven especially powerful, providing band structure information directly in energy-momentum space. Time-resolved ARPES (trARPES) holds great promise of adding ultrafast temporal information, in an attempt to identify different interaction channels in the time domain. Previous studies of the cuprates using trARPES were handicapped by the low probing energy, which significantly limits the accessible momentum space. Using 20.15 eV, 12 fs pulses, we show for the first time the evolution of quasiparticles in the antinodal region of Bi2Sr2CaCu2O8+δ and demonstrate that non-monotonic relaxation dynamics dominates above a certain fluence threshold. As a result, the dynamics is heavily influenced by transient modification of the electron-phonon interaction and phase space restrictions, in stark contrast to the monotonic relaxation in the nodal and off-nodal regions.

Research Organization:
Brookhaven National Laboratory (BNL), Upton, NY (United States); SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States); Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
SC00112704; AC52-06NA25396; AC02-98CH10886; AC02-76SF0051
OSTI ID:
1240592
Alternate ID(s):
OSTI ID: 1260542; OSTI ID: 1321767
Report Number(s):
BNL-111754-2016-JA; LA-UR-15-27700; SDTYAE; R&D Project: PO010; KC0201060
Journal Information:
Structural Dynamics, Vol. 2, Issue 5; ISSN 2329-7778
Publisher:
American Crystallographic Association/AIPCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 7 works
Citation information provided by
Web of Science

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Cited By (3)

Time-resolved XUV ARPES with tunable 24–33 eV laser pulses at 30 meV resolution journal August 2019
Nonequilibrium electron and lattice dynamics of strongly correlated Bi 2 Sr 2 CaCu 2 O 8+δ single crystals journal April 2018
Dynamics of correlation-frozen antinodal quasiparticles in superconducting cuprates journal February 2018