Ultrafast Spin Dynamics in Nickel
arXiv:cond-mat/9709264 · doi:10.1103/PhysRevB.58.R5920
Abstract
The spin dynamics in Ni is studied by an exact diagonalization method on the ultrafast time scale. It is shown that the femtosecond relaxation of the magneto-optical response results from exchange interaction and spin-orbit coupling. Each of the two mechanisms affects the relaxation process differently. We find that the intrinsic spin dynamics occurs during about 10 fs while extrinsic effects such as laser-pulse duration and spectral width can slow down the observed dynamics considerably. Thus, our theory indicates that there is still room to accelerate the spin dynamics in experiments.
4 pages, Latex, 4 postscript figures
References in corpus (4)
- Nonequilibrium Magnetization Dynamics of Nickel
- Simple theory for spin-lattice relaxation in metallic rare earth ferromagnets
- Magnetocrystalline Anisotropy Energy of Transition Metal Thin Films: A Non-perturbative Theory
- Magnetocrystalline Anisotropy Energy of a Transition Metal Monolayer: A Non-perturbative Theory
Cited by in corpus (4)
- Sustained coherent spin wave emission using frequency combs
- Investigation of Ultrafast Demagnetization and Gilbert Damping and their Correlation in Different Ferromagnetic Thin Films Grown Under Identical Conditions
- Ultrafast reduction in exchange interaction by a laser pulse: Alternative path to femtomagnetism
- Gateway to all-optical spin switching in Heusler ferrimagnets: Pancharatnam-Berry tensor and magnetic moment ratio