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arXiv · 1511.07286

Polarized neutron channeling as a tool for the investigations of weakly magnetic thin films

S. V. Kozhevnikov·Yu. N. Khaydukov·T. Keller·F. Ott·F. Radu
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Abstract

We present and apply a new method to measure directly weak magnetization in thin films. The polarization of a neutron beam channeling through a thin film structure is measured after exiting the structure edge as a microbeam. We have applied the method to a tri-layer thin film structure acting as a planar waveguide for polarized neutrons. The middle guiding layer is a rare earth based ferrimagnetic material TbCo5 with a low magnetization of about 20 mT. We demonstrate that the channeling method is more sensitive than the specular neutron reflection method.

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S. V. Kozhevnikov, Yu. N. Khaydukov, T. Keller, F. Ott, F. Radu. 2015-11-23. Polarized neutron channeling as a tool for the investigations of weakly magnetic thin films. https://doi.org/10.1134/s0021364016010082

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