Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5420138 | Progress in Surface Science | 2007 | 19 Pages |
Abstract
We have gained insight into quasielastic, i.e. resonant intra- and interband scattering processes and their inelastic counterparts. Lifetimes of minority and majority image-potential states differ primarily due to the spin-dependent density of states. In the minority channel of iron thin films quasielastic scattering processes become significant and are interpreted in terms of interband scattering between spin-up and spin-down image-potential-state bands. The latter process involves a spin flip on a sub-hundred femtosecond timescale and hints at quasielastic electron-magnon scattering.
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Authors
M. Weinelt, A.B. Schmidt, M. Pickel, M. Donath,