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.
arXiv comment4 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
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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