Other
Scientific paper
Jun 1994
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994georl..21..983w&link_type=abstract
Geophysical Research Letters (ISSN 0094-8276), vol. 21, no. 11, p. 983-986
Other
10
Electrical Properties, Magnetic Properties, Magnetite, Single Crystals, Synthetic Metals, Titanium Oxides, Annealing, Cations, Crystal Growth, Thermochemical Properties, Vacancies (Crystal Defects)
Scientific paper
A single crystal of titanomagnetite Fe(2.4)Ti(0.6)O4 (TM60) was synthesized using the floating zone technique. The Curie temperature, saturation magnetization at 5 K, and thermopower were measured for several pieces of the crystal as grown and following high temperature annealing at different oxygen fugacities within the stability field of the TM60. The magnetic and electrical data indicate the long-range ordering in TM60 is a function of nonstoichiometry with higher cation vacancy concentrations producing a more random cation distribution. This effect may explain the differences among cation distribution models for TM developed previously by other workers.
Moskowitz Bruce M.
Wanamaker Barbara J.
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