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The growth of crystals by the chemical transport of material I. A new method of preparing magnetite single crystals

РОСТ КРИСТАЛЛОВ МЕТОДОМ ХИМИЧЕСКОГО ТРАНСПОРТА I. НОВЫЙ МЕТОД ВЫРАЩИВАНИЯ МОНОКРИСТАЛЛОВ МАГНЕТИТА

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Cechoslovackij fiziceskij zurnal B Aims and scope

Abstract

The paper describes the preparation of single crystals of magnetite (Fe3O4) by transport over the gaseous phase, in a sealed quartz ampoule. Growth occurs at 800°C, i.e. about 750°C below the melting point of magnetite. The crystals obtained, which are octahedral in form, are up to 2 mm in size; as a rule they are bounded by straight, shiny surfaces. Apart from the most frequent surfaces of an octahedron {111} we also see {110}, {hkk} and {hhk} surfaces. The quality of the surface enables the domain structure to be studied by the colloid technique without any further treatment.

Abstract

Описан метод выращивания монокристаллов магнетита (Fe3O4), основанный на транспорте через газообразную фазу в запаянной кварцевой ампуле. Рост осуществляется при температуре 800°C, т. е. примерно на 750°C ниже точки плавления магнетита. Полученные кристаллы имеют форму октаэдров, дотстигают величины до 2 мм, и, как правило, ограничены плоскими блестящими поверхностями. Кроме наиболее часто встречающихся плоскостей октаэдров {111}, у них появляются еще плоскости {110}, {hkk} a {hhk}. Качество поверхности позволяет исследовать доменную структуру при помощи коллоидной техники без всякой дополнительной обработки.

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Authors and Affiliations

  1. Institute of Physics, Czechosl. Acad. Sci., Prague

    Z. Hauptman

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  1. Z. Hauptman
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Finally, the author would like to thank his collaborators from the Institute of Physics of the Czechoslovak Academy of Sciences for help in this work: J. Hejduk, M. Kotrbová and M. Šula for carefully and exactly carrying out the analytical work, R. Gemperle for his explanation of the domain structure of magnetite and B. Šesták and K. Pátek for carefully reading the manuscript and for valuable advice.

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Hauptman, Z. The growth of crystals by the chemical transport of material I. A new method of preparing magnetite single crystals. Czech J Phys 12, 148–158 (1962). https://doi.org/10.1007/BF01688232

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  • DOI: https://doi.org/10.1007/BF01688232

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