  We present measurements of pure spin current absorption on lateral spin
valves. By varying the width of the absorber we demonstrate that spin current
absorption measurements enable to characterize efficiently the spin transport
properties of ferromagnetic elements. The analytical model used to describe the
measurement takes into account the polarization of the absorber. The analysis
of the measurements allows thus determining the polarization and the spin
diffusion length of a studied material independently, contrarily to most
experiments based on lateral spin valves where those values are entangled. We
report the spin transport parameters of some of the most important materials
used in spinorbitronics (Co60Fe40, Ni81Fe19, Co, Pt, and Ta), at room and low
(10 K) temperatures.
