Abstract
The first low temperature texture investigation by neutron diffraction is presented. Pole figures are collected on a special full circle Eulerian cradle mounted completely inside a helium cryostat. Nuclear and magnetic pole figures of antiferromagnetic TbAg are measured at 300 and at 77 K respectively. The bulk specimen revealed only a weak texture. Magnetic satellite reflections presumed for special sample orientations were not observed.
Highlights
There are cases, like the one demonstrated here, where the texture of a sample is needed at low temperature
Materials to be used in space applications require such studies, samples which undergo a magnetic phase transformation and where a different texture after the phase transformation, normally accompanied by a crystallographic transformation may be expected
We report here a texture investigation by neutron diffraction for the first time on a sample at 77 K in a cryostat
Summary
There are cases, like the one demonstrated here, where the texture of a sample is needed at low temperature. Materials to be used in space applications require such studies, samples which undergo a magnetic phase transformation and where a different texture after the phase transformation, normally accompanied by a crystallographic transformation may be expected. The general advantage of neutron diffraction, large samples for example, is another specific point of interest.
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