Ultrafast dynamics of electrons and phonons: from the two-temperature model to the time-dependent Boltzmann equation

F Caruso, D Novko - Advances in Physics: X, 2022 - Taylor & Francis
The advent of pump-probe spectroscopy techniques paved the way to the exploration of
ultrafast dynamics of electrons and phonons in crystalline solids. Following photo-absorption …

Light induced ultrafast magnetization dynamics in metallic compounds

P Scheid, Q Remy, S Lebègue, G Malinowski… - Journal of Magnetism …, 2022 - Elsevier
We review the phenomenology of light-induced ultrafast magnetization dynamics, with
emphasis on metallic compounds. The interaction of femtosecond laser pulses with …

[HTML][HTML] Perspective: Ultrafast magnetism and THz spintronics

J Walowski, M Münzenberg - Journal of Applied Physics, 2016 - pubs.aip.org
This year the discovery of femtosecond demagnetization by laser pulses is 20 years old. For
the first time, this milestone work by Bigot and coworkers gave insight directly into the time …

Laser-induced terahertz spin transport in magnetic nanostructures arises from the same force as ultrafast demagnetization

R Rouzegar, L Brandt, L Nádvorník, DA Reiss… - Physical Review B, 2022 - APS
Laser-induced terahertz spin transport (TST) and ultrafast demagnetization (UDM) are
central but so far disconnected phenomena in femtomagnetism and terahertz spintronics …

Band structure evolution during the ultrafast ferromagnetic-paramagnetic phase transition in cobalt

S Eich, M Plötzing, M Rollinger, S Emmerich… - Science …, 2017 - science.org
The evolution of the electronic band structure of the simple ferromagnets Fe, Co, and Ni
during their well-known ferromagnetic-paramagnetic phase transition has been under …

Ultrafast demagnetization of iron induced by optical versus terahertz pulses

AL Chekhov, Y Behovits, JJF Heitz, C Denker… - Physical Review X, 2021 - APS
We study ultrafast magnetization quenching of ferromagnetic iron following excitation by an
optical versus a terahertz pump pulse. While the optical pump (photon energy of 3.1 eV) …

Hot-Electron-Induced Ultrafast Demagnetization in Multilayers

N Bergeard, M Hehn, S Mangin, G Lengaigne… - Physical review …, 2016 - APS
Using specially engineered structures to tailor the optical absorption in a metallic multilayer,
we analyze the magnetization dynamics of a Co/Pt multilayer buried below a thick Cu layer …

Critical behavior within 20 fs drives the out-of-equilibrium laser-induced magnetic phase transition in nickel

P Tengdin, W You, C Chen, X Shi, D Zusin, Y Zhang… - Science …, 2018 - science.org
It has long been known that ferromagnets undergo a phase transition from ferromagnetic to
paramagnetic at the Curie temperature, associated with critical phenomena such as a …

Ultrafast optical manipulation of magnetic order in ferromagnetic materials

C Wang, Y Liu - Nano Convergence, 2020 - Springer
The interaction between ultrafast lasers and magnetic materials is an appealing topic. It not
only involves interesting fundamental questions that remain inconclusive and hence need …

Modeling ultrafast demagnetization and spin transport: The interplay of spin-polarized electrons and thermal magnons

M Beens, RA Duine, B Koopmans - Physical Review B, 2022 - APS
We theoretically investigate laser-induced spin transport in metallic magnetic
heterostructures using an effective spin-transport description that treats itinerant electrons …