  Electronic spin precession and filtering are measured in the molecular field
of magnetic thin films. The conducted lab-on-chip experiments allow injection
of electrons with energies between 0.8 and 1.1 eV, an energy range never
explored up to now in spin precession experiments. While filtering angles agree
with previous reported values measured at much higher electron energies, spin
precession angles of 2.5{\deg} in CoFe and 0.7{\deg} in Co per nanometer film
thickness could be measured which are 30 times smaller than those previously
measured at 7 eV. Band structure effects and layer roughness are responsible
for these small precession angle values.
