title: Using high energy angle resolved photoelectron spectroscopy to reveal the charge density in solids.
abstract: The charge density in solids is a fundamental parameter. Here we demonstrate that the charge density can be determined by the use of angle resolved photoelectron spectroscopy. The method, which involves a Fourier-like transform from momentum space to real space, is demonstrated by utilizing soft x-ray angle resolved photoelectron spectroscopy to sample the complete three-dimensional Brillouin zone of copper. It is also shown that this can be done in an energy resolved way as to extract the charge density contribution from states of a particular energy.
authors.affiliation: Materials Physics, Royal Institute of Technology KTH, Electrum 229, S-164 40 Kista, Sweden.
authors.forename: M
authors.initials: M
authors.lastname: Månsson
authors.forename: T
authors.initials: T
authors.lastname: Claesson
authors.forename: M
authors.initials: M
authors.lastname: Finazzi
authors.forename: C
authors.initials: C
authors.lastname: Dallera
authors.forename: N B
authors.initials: NB
authors.lastname: Brookes
authors.forename: O
authors.initials: O
authors.lastname: Tjernberg