Study of the phase transitions by SR X-ray diffractometry and topography by helium-3 dilution refrigerater.

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Abstract

The observation of the crystal structure variations at very low temperature plays important roles to get better understanding in the phase transitions. For those, tow sets of the3He dilution refrigerator with top-loading were installed at BL-3C2 and 6C1 in Photon Factory. The typical examples of topographs from solid3He as the quantum crystal and Ho-elpasolite as the nuclear spin ordered magnet will be presented.

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