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

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.
Authors:
 [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)
Publication Date:
Grant/Contract Number:
AC02-76SF00515; FG02-08ER46542; AC02-05CH11231
Type:
Accepted Manuscript
Journal Name:
Physical Review B
Additional Journal Information:
Journal Volume: 96; Journal Issue: 18; Journal ID: ISSN 2469-9950
Publisher:
American Physical Society (APS)
Research Org:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY
OSTI Identifier:
1418091
Alternate Identifier(s):
OSTI ID: 1409467

Nosarzewski, B., Moritz, B., Freericks, J. K., Kemper, A. F., and Devereaux, T. P.. Amplitude mode oscillations in pump-probe photoemission spectra from a d-wave superconductor. United States: N. p., Web. doi:10.1103/PhysRevB.96.184518.
Nosarzewski, B., Moritz, B., Freericks, J. K., Kemper, A. F., & Devereaux, T. P.. Amplitude mode oscillations in pump-probe photoemission spectra from a d-wave superconductor. United States. doi:10.1103/PhysRevB.96.184518.
Nosarzewski, B., Moritz, B., Freericks, J. K., Kemper, A. F., and Devereaux, T. P.. 2017. "Amplitude mode oscillations in pump-probe photoemission spectra from a d-wave superconductor". United States. doi:10.1103/PhysRevB.96.184518. https://www.osti.gov/servlets/purl/1418091.
@article{osti_1418091,
title = {Amplitude mode oscillations in pump-probe photoemission spectra from a d-wave superconductor},
author = {Nosarzewski, B. and Moritz, B. and Freericks, J. K. and Kemper, A. F. and Devereaux, T. P.},
abstractNote = {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.},
doi = {10.1103/PhysRevB.96.184518},
journal = {Physical Review B},
number = 18,
volume = 96,
place = {United States},
year = {2017},
month = {11}
}