Title: Spatially inhomogeneous ultrafast precessional magnetization reversal
Authors: Hiebert, WK ×
Lagae, Liesbet
De Boeck, J #
Issue Date: 2003
Publisher: Published by the American Physical Society through the American Institute of Physics
Series Title: Physical Review B, Condensed Matter and Materials Physics vol:68 issue:2
Article number: ARTN 020402
Abstract: A novel, all-optical method to excite and detect spin waves in magnetic materials is presented. By exploiting the temperature dependence of the magnetic anisotropy, an ultrashort laser pulse is efficiently converted in a picosecond “anisotropy field” pulse that triggers a coherent precession of the magnetization. Recording the temporal evolution of the precessing spins by a time-delayed probe-pulse provides a quantitative method to study locally the magnetic anisotropy, as well as switching and damping phenomena in micromagnetic structures. Applications to nickel and permalloy ( Ni80Fe20) films are discussed, particularly showing the possibility to explore standing spin waves in thin films.
ISSN: 1098-0121
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Solid State Physics and Magnetism Section
× corresponding author
# (joint) last author

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