The Morin transition is investigated by neutron diffraction topography on high crystalline quality flux-grown single crystals of cr-Fe,O,. They display a widely spread transition, which is complete for some of the crystals, partial for others and even "reentrant" in one case. Topographs indicate that the transition takes place through a succession of abrupt transitions of regions of the sample, and give images of these regions. We discuss the possible relationship between these regions and the crystal perfection.
Neutron topographic investigation of the Morin transition in flux-grown crystals of $\alpha$-Fe< sub> 2 O< sub> 3
Watts;BE
1987
Abstract
The Morin transition is investigated by neutron diffraction topography on high crystalline quality flux-grown single crystals of cr-Fe,O,. They display a widely spread transition, which is complete for some of the crystals, partial for others and even "reentrant" in one case. Topographs indicate that the transition takes place through a succession of abrupt transitions of regions of the sample, and give images of these regions. We discuss the possible relationship between these regions and the crystal perfection.File in questo prodotto:
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