Bulg. J. Phys. vol.34 no.s1 (2007), pp. 155-184

Scattering with Polarized Neutrons

J. Schweizer
CEA-Grenoble, MDN/SPSPS/DRFMC, 17 avenue des martyrs, 38054 Grenoble Cedex 9, France
Abstract. In the history of neutron scattering, it was shown very soon that the use of polarized neutron beams brings much more information than usual scattering with unpolarized neutrons. We shall develop here the different scattering methods which imply polarized neutrons:
− polarized beams without polarization analysis, the flipping ratio method,
− polarized beams with a uniaxial polarization analysis,
−polarized beams with a spherical polarization analysis.
For all these scattering methods, we shall give examples of the physical problems which can been solved by these methods, particularly in the field of magnetism: investigation of complex magnetic structures, investigation of spin or magnetization densities in metals, insulators and molecular compounds, separation of magnetic and nuclear scattering, investigation of magnetic properties of liquids and amorphous materials and even, for non magnetic material, separation between coherent and incoherent scattering.

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