Polarised neutrons (l=0.47 nm) are transmitted through sputtered CoCr films. From the measured diagonal elements of the depolarisation matrix it appears that the effective thickness heff of the films is about 50% of the actual thickness. When a soft magnetic NiFe film is deposited before or after deposition of the CoCr, heff is 67 and 60% of the actual thickness respectively, due to the disappearance of the flux closure in the CoCr film. From the angular dependence of the diagonal elements compared with computer simulation the "chain of column" model is supported. Our results indicate that magnetic flux is closed by "branched" spikes at least in the substrate side of the CoCr film.
|Number of pages||3|
|Publication status||Published - 1986|
|Event||International Conference on Neutron Scattering, ICNS 1985 - Santa Fe, United States|
Duration: 19 Aug 1985 → 23 Aug 1985
- SMI-MAT: MATERIALS
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