Neutron Scattering Experiments on Nuclear Magnets–Set-up and First Results

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Abstract
A two stage nuclear demagnetization cryostat has been constructed for neutron scattering studies of nuclear magnetism at mK, µK and nK temperatures. Special precautions needed in order to perform these ultra-low temperature experiments in a reactor environment are briefly discussed. The use of polarized neutrons and the two-magnet design enables a variety of unique experiments. We present data on the spin-lattice relaxation in copper at very low temperatures and in high magnetic fields.

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