Theory of Out-of-Equilibrium Ultrafast Relaxation Dynamics in Metals
arXiv:1708.01470 · doi:10.1103/PhysRevB.96.174439
Abstract
Ultrafast laser excitation of a metal causes correlated, highly nonequilibrium dynamics of electronic and ionic degrees of freedom, which are however only poorly captured by the widely-used two-temperature model. Here we develop an out-of-equilibrium theory that captures the full dynamic evolution of the electronic and phononic populations and provides a microscopic description of the transfer of energy delivered optically into electrons to the lattice. All essential nonequilibrium energy processes, such as electron-phonon and phonon-phonon interactions are taken into account. Moreover, as all required quantities are obtained from first-principles calculations, the model gives an exact description of the relaxation dynamics without the need for fitted parameters. We apply the model to FePt and show that the detailed relaxation is out-of-equilibrium for picoseconds.
arXiv comment6 pages, 5 figures
References in corpus (16)
- Distribution of phonon lifetime in Brillouin zone
- An optically stimulated superconducting-like phase in K3C60 far above equilibrium Tc
- Nonequilibrium dynamical mean-field theory and its applications
- Ultrafast switching to a stable hidden topologically protected quantum state in an electronic crystal
- All-optical control of ferromagnetic thin films and nanostructures
- Electron-phonon coupling and energy flow in a simple metal beyond the two-temperature approximation
- Ultrafast Magneto-Acoustics in Nickel Films
- Theory of Thermal Relaxation of Electrons in Semiconductors
- Speed limit of FePt spin dynamics on femtosecond timescales
- Ab initio theory of electron-phonon mediated ultrafast spin relaxation of laser-excited hot electrons in transition-metal ferromagnets
- Energy dissipation in the time domain governed by bosons in a correlated material
- Interaction quench in the Holstein model: Thermalization crossover from electron- to phonon-dominated relaxation
- Generation of high-frequency strain waves during femtosecond demagnetization of Fe/MgO films
- Coherent and Incoherent Structural Dynamics in Laser-Excited Antimony
- Theory of the electron relaxation in metals excited by an ultrashort optical pump
- Relationship between Population Dynamics and the Self-Energy in Driven Non-Equilibrium Systems
Cited by in corpus (57)
- Ultrafast spin-currents and charge conversion at 3d-5d interfaces probed by time-domain terahertz spectroscopy
- General method for atomistic spin-lattice dynamics with first principles accuracy
- Ultrafast dynamics of electrons and phonons: from the two-temperature model to the time-dependent Boltzmann equation
- Tracking the Ultrafast Non-Equilibrium Energy Flow between Electronic and Lattice Degrees of Freedom in Crystalline Nickel
- Ultrafast electron calorimetry uncovers a new long-lived metastable state in 1T-TaSe mediated by mode-selective electron-phonon coupling
- Layer specific observation of slow thermal equilibration in ultrathin metallic nanostructures by femtosecond x-ray diffraction
- Coherent modulation of the electron temperature and electron-phonon couplings in a 2D material
- Thermalization in simple metals: The role of electron-phonon and phonon-phonon scatterings
- Theory of out-of-equilibrium electron and phonon dynamics in metals after ultrafast laser excitation
- Quantum Brownian Motion for Magnets
- Tracking the time-evolution of the electron distribution function in Copper by femtosecond broadband optical spectroscopy
- Ultrafast Transient Dynamics of Adsorbates on Surfaces Deciphered: The Case of CO on Cu(100)
- Concepts and use cases for picosecond ultrasonics with x-rays
- Theory of the electron-ion temperature relaxation rate spanning the hot solid metals and plasma phases
- Phonon-induced long-lasting nonequilibrium in the electron system of a laser-excited solid
- Microscopic non-equilibrium energy transfer dynamics in a photoexcited metal/insulator heterostructure
- Ultrafast photoluminescence in metals: Theory and its application to silver
- Non-equilibrium effects on electron-phonon coupling constant in metals
- Ultrafast demagnetization in ferromagnetic materials: Origins and progress
- Establishing non-thermal regimes in pump-probe electron-relaxation dynamics
- A tunable time-resolved spontaneous Raman spectroscopy setup for probing ultrafast collective excitation and quasiparticle dynamics in quantum materials
- Phonon-assisted processes in the ultraviolet transient optical response of graphene
- Implementation of the electronic non-equilibrium in the two-temperature model
- Ultrafast relaxation of symmetry-breaking photo-induced atomic forces
- Ab initio investigation of laser-induced ultrafast demagnetization of L1 FePt: Intensity dependence and importance of electron coherence
- Ultrafast Demagnetization through Femtosecond Generation of Non-thermal Magnons
- Ultrafast negative thermal expansion driven by spin-disorder
- Energy relaxation and electron-phonon coupling in laser-excited metals
- Ab initio analysis for initial process of Joule heating in semiconductors
- Nonequilibrium Electron Dynamics In Pump-Probe Spectroscopy: Role Of Excited Phonon Populations
- Photocarrier thermalization bottleneck in graphene
- Numerical solver for the time-dependent far-from-equilibrium Boltzmann equation
- Ultrafast magnetization reversal in ferromagnetic spin-valves: an s-d model perspective
- Electronic temperature and two-electron processes in overbias plasmonic emission from tunnel junctions
- Charge-carrier thermalization in bulk and monolayer CdTe from first principles
- Microscopic Theory of Ultrafast Out-of-Equilibrium Dynamics in Magnetic Insulators. Unraveling the Magnon-Phonon Coupling
- First-principles study of ultrafast dynamics of Dirac plasmon in graphene
- Evolution of non-thermal phonon and electron populations in photo-excited germanium on picosecond timescales
- Numerical scheme for the far-out-of-equilibrium time-dependent Boltzmann collision operator: 1D second-degree momentum discretisation and adaptive time stepping
- Ultrafast generation of hidden phases via energy-tuned electronic photoexcitation in magnetite
- Electron-electron and electron-phonon relaxation in metals excited by optical pulse
- Momentum-Resolved Signatures of Carrier Screening Effects on Electron-Phonon Coupling in MoS
- Relaxation of electrons in quantum-confined states in Pb/Si(111) thin films from master equation with first-principles-derived rates
- Generation of Phonons with Angular Momentum During Ultrafast Demagnetization
- Beyond a phenomenological description of magnetostriction
- Revisiting the low temperature electron-phonon relaxation of noble metals
- Long-time equilibration can determine transient thermality
- Spin-lattice couplings in ferromagnets: analysis from first-principles
- Phonon-induced renormalization of exchange interactions in metallic two-dimensional magnets
- Photo-induced modification and relaxation dynamics of Weyl-semimetals
- Numerical Solver for the out-of-equilibrium time dependent Boltzmann Collision operator: Application to 2D materials
- Structural Origin of Boson Peak in Glasses
- Energy flow during relaxation in an electron-phonon system with multiple modes: A nonequilibrium Green's function study
- Relaxation of photo-excited hot carriers beyond multi-temperature models: General theory description verified by experiments on Pb/Si(111)
- Effect of lattice excitations on transient near edge X-ray absorption spectroscopy
- Modeling the relaxation processes of photoexcited solids: A short review
- Differentiating Contributions of Electrons and Phonons to the Thermoreflectance Spectra of Gold