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Title: Amplitude mode oscillations in pump-probe photoemission spectra from a d -wave superconductor

Journal Article · · Physical Review B
 [1];  [2];  [3];  [4];  [5]
  1. Stanford Univ., Stanford, CA (United States); SLAC National Accelerator Lab., Menlo Park, CA (United States)
  2. SLAC National Accelerator Lab., Menlo Park, CA (United States); Univ. of North Dakota, Grand Forks, ND (United States)
  3. Georgetown Univ., Washington, D.C. (United States)
  4. North Carolina State Univ., Raleigh, NC (United States)
  5. SLAC National Accelerator Lab., Menlo Park, CA (United States); Stanford Univ., Stanford, CA (United States)

Recent developments in the techniques of ultrafast pump-probe photoemission have made possible the search for collective modes in strongly correlated systems out of equilibrium. Including inelastic scattering processes and a retarded interaction, we simulate time- and angle-resolved photoemission spectroscopy (trARPES) to study the amplitude mode of a d-wave superconductor, a collective mode excited through the nonlinear light-matter coupling to the pump pulse. We find that the amplitude mode oscillations of the d-wave order parameter occur in phase at a single frequency that is twice the quasi-steady-state maximum gap size after pumping. As a result, we comment on the necessary conditions for detecting the amplitude mode in trARPES experiments.

Research Organization:
SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
AC02-76SF00515; FG02-08ER46542; AC02-05CH11231
OSTI ID:
1418091
Alternate ID(s):
OSTI ID: 1409467
Journal Information:
Physical Review B, Vol. 96, Issue 18; ISSN 2469-9950
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 17 works
Citation information provided by
Web of Science

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Cited By (6)

Classification and characterization of nonequilibrium Higgs modes in unconventional superconductors journal January 2020
Theoretical understanding of photon spectroscopies in correlated materials in and out of equilibrium journal August 2018
Analysis of time-resolved single-particle spectrum on the one-dimensional extended Hubbard model journal January 2020
Theory of ultrafast phenomena in photoexcited semiconductors journal August 2002
Higgs Oscillations in time-resolved Optical Conductivity text January 2019
Analysis of time-resolved single-particle spectrum on the one-dimensional extended Hubbard model text January 2019