We present a versatile apparatus for the study of ferromagnetic surfaces, which combines spin-polarized photoemission and inverse photoemission spectroscopies. Samples can be grown by molecular beam epitaxy and analyzed in situ. Spin-resolved photoemission spectroscopy analysis is done with a hemispherical electron analyzer coupled to a 25 kV-Mott detector. Inverse photoemission spectroscopy experiments are performed with GaAs crystals as spin-polarized electron sources and a UV bandpass photon detector. As an example, measurements on the oxygen passivated Fe(100)-p(1×1)O surface are presented.
Direct observation of spin-resolved full and empty electron states in ferromagnetic surfaces
G. Berti, A. Calloni, A. Brambilla, G. Bussetti, L. Duò, F. Ciccacci; Direct observation of spin-resolved full and empty electron states in ferromagnetic surfaces. Rev. Sci. Instrum. 1 July 2014; 85 (7): 073901. https://doi.org/10.1063/1.4885447
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