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Electron-correlation effects in appearance-potential spectra of Ni

M. Potthoff·T. Wegner·W. Nolting·T. Schlathölter·M. Vonbank·K. Ertl·J. Braun·M. Donath
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Abstract

Spin-resolved and temperature-dependent appearance-potential spectra of ferromagnetic Nickel are measured and analyzed theoretically. The Lander self-convolution model which relates the line shape to the unoccupied part of the local density of states turns out to be insufficient. Electron correlations and orbitally resolved transition-matrix elements are shown to be essential for a quantitative agreement between experiment and theory.

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M. Potthoff, T. Wegner, W. Nolting, T. Schlathölter, M. Vonbank, K. Ertl, J. Braun, M. Donath. 2001-02-19. Electron-correlation effects in appearance-potential spectra of Ni. https://doi.org/10.1103/physrevb.63.165118

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