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Science 16 October 1964:
Vol. 146. no. 3642, pp. 398 - 399
DOI: 10.1126/science.146.3642.398
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Articles

Thermochemical Etching Reveals Domain Structure in Magnetite

Robert E. Hanss 1

1 Department of Earth Sciences, Washington University, St. Louis, Missouri 63130

Single crystals of magnetite were prepared for study of the magnetic domain structure by etching in a molten mixture of boron oxide and lead oxide. The domain pattern on a (110) surface shows 71°, 109°, and 180° Bloch walls. The intensity of remanent magnetization is much less than the saturation value.

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Science. ISSN 0036-8075 (print), 1095-9203 (online)