Orientationally independent antiferromagnetic coupling in epitaxial Fe/Cr (211) and (100) superlattices.

摘要

We present structural and magnetic characterization of epitaxial Fe/Cr(211) and Fe/Cr(100) superlattices grown simultaneously on MgO(110) and MgO (100) substrates by magnetron sputtering. The epitaxial orientation of the Fe/Cr(211) superlattice with the MgO(110) substrates is Fe/Cr(011)//MgO(001) and the orientation of Fe/Cr(100) is Fe/Cr(001)//MgO(011). We find that for both orientations, that the interlayer coupling oscillates in sign with a period of 18(Angstrom), and, furthermore, that the strength and phase of the magnetic coupling are also nearly identical for these two orientations.