An electron energy loss spectrometer designed for studies of electronic energy losses and spin waves in the large momentum regime

Ibach, H.; Rajeswari, J.; Schneider, C.M.

doi:10.1063/1.3670731

Journal Article

PreJuSER-19532

An electron energy loss spectrometer designed for studies of electronic energy losses and spin waves in the large momentum regime

Ibach, H.FZJ* ; Rajeswari, J. ; Schneider, C. M.

2011
American Institute of Physics [S.l.]

Review of scientific instruments 82, 123904 (2011) [10.1063/1.3670731]

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Please use a persistent id in citations: http://hdl.handle.net/2128/7391 doi:10.1063/1.3670731

Abstract: Based on 143° electrostatic deflectors we have realized a new spectrometer for electron energy loss spectroscopy which is particularly suitable for studies on surface spin waves and other low energy electronic energy losses. Contrary to previous designs high resolution is maintained even for diffuse inelastic scattering due to a specific management of the angular aberrations in combination with an angle aperture. The performance of the instrument is demonstrated with high resolution energy loss spectra of surface spin waves on a cobalt film deposited on the Cu(100) surface.

Keyword(s): J ; aberrations (auto) ; spectrometers (auto)

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Note: The authors gratefully acknowledge the able technical support by Bernd Kupper during all stages of the development of the experimental equipment as well as the efforts of Lutz Baumgarten in the design of the experimental set-up. One of us (J.R.) expresses her sincere gratefulness to the NRW Research School "Forschung mit Synchrotronstrahlung in den Nano- und Biowissenschaften" for financial support. The authors are indebted to K. Zakeri for describing experimental details, in particular the potential setting used in Ref. 9 and for helpful discussions.

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