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Title: Nonequilibrium electron dynamics in pump-probe spectroscopy: Role of excited phonon populations

Journal Article · · Physical Review B
 [1];  [1];  [1];  [2];  [1];  [1]
  1. North Carolina State Univ., Raleigh, NC (United States)
  2. Georgetown Univ., Washington, DC (United States)

We study the role of excited phonon populations in the relaxation rates of nonequilibrium electrons using a nonequilibrium Green's function formalism. The transient modi cations in the phononic properties are accounted for by self-consistently solving the Dyson equation for the electron and phonon Green's functions. The pump induced changes manifest in both the electronic and phononic spectral functions. We nd that the excited phonon populations suppress the decay rates of nonequilibrium electrons due to enhanced phonon absorption. The increased phonon occupation also sets the nonequilibrium decay rates and the equilibrium scattering rates apart. The decay rates are found to be time-dependent, and this is illustrated in the experimentally observed population decay of photoexcited Bi1.5Sb0.5Te1.7Se1.3.

Research Organization:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States). National Energy Research Scientific Computing Center (NERSC)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
AC02-05CH11231; SC0010324; FG02-08ER46542
OSTI ID:
1544150
Alternate ID(s):
OSTI ID: 1484968
Journal Information:
Physical Review B, Vol. 98, Issue 24; ISSN 2469-9950
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 10 works
Citation information provided by
Web of Science

References (68)

Control of the electronic phase of a manganite by mode-selective vibrational excitation journal September 2007
Nonequilibrium Dynamical Mean-Field Theory journal December 2006
Interaction quench in the Holstein model: Thermalization crossover from electron- to phonon-dominated relaxation journal January 2015
Momentum-resolved hot electron dynamics at the 2 H MoS 2 surface journal November 2016
Energy dissipation from a correlated system driven out of equilibrium journal December 2016
Tracking Cooper Pairs in a Cuprate Superconductor by Ultrafast Angle-Resolved Photoemission journal May 2012
Elementary relaxation processes investigated by femtosecond photoelectron spectroscopy of two-dimensional materials journal February 2012
Light-Induced Superconductivity in a Stripe-Ordered Cuprate journal January 2011
Examining Electron-Boson Coupling Using Time-Resolved Spectroscopy journal December 2013
Studies of polaron motion journal November 1959
Nodal quasiparticle meltdown in ultrahigh-resolution pump–probe angle-resolved photoemission journal July 2011
Review of the Theoretical Description of Time-Resolved Angle-Resolved Photoemission Spectroscopy in Electron-Phonon Mediated Superconductors: Review of the theoretical description of time-resolved angle-resolved photoemission spectroscopy ⋅⋅⋅ journal July 2017
Photoemission Studies of High-Tc Superconductors: The Superconducting Gap journal January 1995
Enhanced electron-phonon coupling in graphene with periodically distorted lattice journal January 2017
Observation of Discrete-Time-Crystal Signatures in an Ordered Dipolar Many-Body System journal May 2018
Ultrafast dynamics of nonequilibrium electrons in metals under femtosecond laser irradiation journal May 2002
Femtosecond spectroscopy of electron-electron and electron-phonon energy relaxation in Ag and Au journal May 1995
Non-equilibrium Dirac carrier dynamics in graphene investigated with time- and angle-resolved photoemission spectroscopy journal January 2014
Possible light-induced superconductivity in K3C60 at high temperature journal February 2016
Studies of polaron motion journal November 1959
Quantum Time Crystals journal October 2012
Nonequilibrium Many-Body Theory of Quantum Systems book March 2013
Electron relaxation in metals: Theory and exact analytical solutions journal November 2008
Theory of out-of-equilibrium ultrafast relaxation dynamics in metals journal November 2017
Snapshots of non-equilibrium Dirac carrier distributions in graphene journal October 2013
Relationship between Population Dynamics and the Self-Energy in Driven Non-Equilibrium Systems journal May 2016
Inequivalence of Single-Particle and Population Lifetimes in a Cuprate Superconductor journal June 2015
Nonequilibrium electron and lattice dynamics of strongly correlated Bi 2 Sr 2 CaCu 2 O 8+δ single crystals journal April 2018
Phonon-enhanced relaxation and excitation in the Holstein-Hubbard model journal October 2013
Ultrafast Optical Excitation of a Persistent Surface-State Population in the Topological Insulator Bi 2 Se 3 journal March 2012
Mapping of unoccupied states and relevant bosonic modes via the time-dependent momentum distribution journal June 2013
Time propagation of the Kadanoff–Baym equations for inhomogeneous systems journal June 2009
Nonequilibrium dynamical mean-field theory and its applications journal June 2014
Theory of thermal relaxation of electrons in metals journal September 1987
Gauge invariance in the theoretical description of time-resolved angle-resolved pump/probe photoemission spectroscopy journal October 2015
Observation of a large-gap topological-insulator class with a single Dirac cone on the surface journal May 2009
Photo-enhanced antinodal conductivity in the pseudogap state of high-Tc cuprates journal July 2014
Relaxation Dynamics of the Holstein Polaron journal December 2012
Ultrafast Dynamics of Massive Dirac Fermions in Bilayer Graphene journal June 2014
Ultrafast electron dynamics in the topological insulator Bi 2 Se 3 studied by time-resolved photoemission spectroscopy journal August 2014
Hot electron lifetimes in metals probed by time-resolved two-photon photoemission journal August 2015
Effect of dynamical spectral weight redistribution on effective interactions in time-resolved spectroscopy journal August 2014
Theoretical Description of Time-Resolved Photoemission Spectroscopy: Application to Pump-Probe Experiments journal March 2009
Ultrafast Band Structure Control of a Two-Dimensional Heterostructure journal May 2016
General Principles for the Nonequilibrium Relaxation of Populations in Quantum Materials journal October 2018
Ultrafast optical spectroscopy of strongly correlated materials and high-temperature superconductors: a non-equilibrium approach journal March 2016
Ultrafast carrier dynamics in thin-films of the topological insulator Bi 2 Se 3 journal October 2013
Self-Consistent Approximations in Many-Body Systems journal August 1962
Direct measurement of nonequilibrium electron-energy distributions in subpicosecond laser-heated gold films journal May 1992
Ultrafast charge localization in a stripe-phase nickelate journal October 2013
Observation of Ultrafast Free Carrier Dynamics in Single Layer MoS 2 journal August 2015
Studies of Polaron Motion journal April 2000
Direct measurement of nonequilibrium electron-energy distributions in sub-picosecond laser-heated gold films journal March 1993
Theoretical description of time-resolved photoemission spectroscopy: application to pump-probe experiments text January 2008
Time-propagation of the Kadanoff-Baym equations for inhomogeneous systems text January 2009
Tracking Cooper Pairs in a Cuprate Superconductor by Ultrafast Angle-Resolved Photoemission text January 2012
Examining electron-boson coupling using time-resolved spectroscopy text January 2012
Snapshots of non-equilibrium Dirac carrier distributions in graphene text January 2013
Phonon-enhanced relaxation and excitation in the Holstein-Hubbard model text January 2013
Ultrafast carrier dynamics in thin-films of the topological insulator Bi2Se3 text January 2013
Nonequilibrium dynamical mean-field theory and its applications text January 2013
Ultrafast Electron Dynamics in the Topological Insulator Bi2Se3 Studied by Time-Resolved Photoemission Spectroscopy text January 2014
Ultrafast Dynamics of Massive Dirac Fermions in Bilayer Graphene text January 2014
Effect of dynamical spectral weight redistribution on effective interactions in time-resolved spectroscopy text January 2014
Photo-enhanced antinodal conductivity in the pseudogap state of high Tc cuprates text January 2014
Observation of Ultrafast Free Carrier Dynamics in Single Layer MoS$_2$ text January 2015
Relationship between Population Dynamics and the Self-Energy in Driven Non-Equilibrium Systems text January 2016
Enhanced electron-phonon coupling in graphene with periodically distorted lattice text January 2016

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