Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5396789 | Journal of Electron Spectroscopy and Related Phenomena | 2009 | 5 Pages |
Abstract
We have explored the spin polarisation of excited electrons in amorphous ferromagnetic iron-boron alloy by spin-resolved two-photon photoemission. These measurements were carried out with a spin resolved electron Time-of-Flight (ToF) analyser combined to a femtosecond laser source. The low kinetic energy was probed by caesium preparation of the sample surface. A constant spin polarisation of 18% was measured in the energy region between 1.3 and 3.2Â eV above the Fermi level. The magnetic properties of the sample were characterised by a spin-resolved square hysteresis loop.
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Physical Sciences and Engineering
Chemistry
Physical and Theoretical Chemistry
Authors
C.M. Cacho, V.R. Dhanak, L.B. Jones, C.J. Baily, K.L. Ronayne, M. Towrie, C. Binns, E.A. Seddon,