Investigations on the Domain Structure in Hematite by means of the Electron Beam Method

Shadow patterns have been obtained from crystals of hematite using the electron beam technique. These patterns possess shadow-edge features which are shown to be consistent with that to be expected from a domain structure. In many of the crystals examined the features disappear on cooling at about —...

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Bibliographic Details
Published in:Proceedings of the Royal Society of London. Series A, Mathematical and physical sciences Mathematical and physical sciences, 1959-05, Vol.251 (1264), p.117-126
Main Authors: Blackman, Moses, Haigh, G., Lisgarten, N. D.
Format: Article
Language:English
Subjects:
Crystals
Electron beams
Electrons
Ferromagnetism
Hematite
Impurities
Magnetic fields
Order disorder transformations
Room temperature
Titanium
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Summary:Shadow patterns have been obtained from crystals of hematite using the electron beam technique. These patterns possess shadow-edge features which are shown to be consistent with that to be expected from a domain structure. In many of the crystals examined the features disappear on cooling at about —15 °C and reappear on heating. In a number of cases of crystals containing relatively large amounts of impurities, particularly titanium, the shadow-edge features either do not change, or disappear only at appreciably lower temperatures.
ISSN:1364-5021
0080-4630
1471-2946
2053-9169
DOI:10.1098/rspa.1959.0095