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.
@article{arxiv.cond-mat/0102331,
title = {Electron-correlation effects in appearance-potential spectra of Ni},
author = {M. Potthoff and T. Wegner and W. Nolting and T. Schlathölter and M. Vonbank and K. Ertl and J. Braun and M. Donath},
journal= {arXiv preprint arXiv:cond-mat/0102331},
year = {2009}
}
Comments
LaTeX, 6 pages, 2 eps figures included, Phys. Rev. B (in press)