Neutron scattering experiment on solid super(3)He

Magnetic neutron scattering probes the order parameter symmetry and magnitude on the atomic length scale, as well as exchange parameters in a critical scattering experiment above the ordering temperature. Therefore we propose an experiment for magnetic neutron diffraction on solid super(3) He. Diffi...

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Bibliographic Details
Published in:Journal of low temperature physics 2002-01, Vol.126 (1-2), p.51-56
Main Authors: Schottl, Stephan, Siemensmeyer, Konrad, Boyko, Vitaliy, Bat'ko, Ivan, Mat'as, Slavomir, Raasch, Sebastian, Adams, E Dwight, Sherline, Todd E
Format: Article
Language:English
Subjects:
Cryostats
Magnetic devices
Neutron absorption
Neutron diffraction
Neutron scattering
Neutron spectrometers
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Summary:Magnetic neutron scattering probes the order parameter symmetry and magnitude on the atomic length scale, as well as exchange parameters in a critical scattering experiment above the ordering temperature. Therefore we propose an experiment for magnetic neutron diffraction on solid super(3) He. Difficulties arise from heat input and small signal intensities, both due to neutron absorption. Thus, a special design of neutron spectrometer, sample cell, and cryostat is required. We present calculated requirements of the involved components. We show the feasibility and possibilities of such an experiment along with first results of performance measurements of some of the parts.
ISSN:0022-2291