Kh. Speidel et al., EVIDENCE FOR ION-BEAM-INDUCED ATTENUATIONS OF THE STATIC HYPERFINE FIELD AT RECOIL IMPLANTED FE-56 IONS IN FE HOST, Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms, 122(1), 1997, pp. 84-88
Measurements of transient (TF) and static (SF) magnetic hyperfine fiel
ds at Fe-56 (2(+)) ions, implanted in Fe host after Coulomb excitation
using O-16- and Fe-56-beams, exhibit attenuations of the SF strength
which is shown for the first time to be primarily due to the effect of
the ion beam and only secondarily to that of the recoil ion. The beam
induced attenuation is of the same nature and magnitude as for TF, wh
ich has been determined in former measurements. It must therefore aris
e from the depolarization of the Fe 3d electrons resulting from the io
n stopping. The effect of the recoil implanted ion may be attributed t
o a thermal spike which seems to be more efficient for heavier probe i
ons.