  Stripe domains or any other type domain structures with part of their
magnetic moments deviating from the film plane, which usually occur above a
certain film thickness, are known problems that limit their potential
applications for soft magnetic thin films (SMTFs). In this work, we report the
growth of micrometer thick c-axis oriented hcp-Co84Ir16 SMTFs with their
magnetic moments restricted strictly in plane by negative magnetocrystalline
anisotropy. Extensive characterizations have been performed on these films,
which show that they exhibit very good soft magnetic properties even for our
micrometer thick films. Moreover, the anisotropy properties and high-frequency
properties were thoroughly investigated and our results show very promising
properties of these SMTFs for future applications.
