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Ferromagnetic chromites, KxZnyCrOz, from electrodeposition

Authors
Journal
Journal of Inorganic and Nuclear Chemistry
0022-1902
Publisher
Elsevier
Publication Date
Volume
38
Issue
12
Identifiers
DOI: 10.1016/0022-1902(76)80189-3
Disciplines
  • Chemistry
  • Physics

Abstract

Abstract The formation of nonstoichiometric ferromagnetic solids, K x Zn y CrO z , from the electrochemicial reduction of K 2CrO 4 in molten ZnCl 2 KCl is described. These electrode deposits are ferromagnetic at room temperature and are characterized by means of Faraday magnetic susceptibility measurements, ESR spectra, X-ray powder diffraction, chemical composition and the coulometrically established equivalents of current per mole of chromium. The Curie temperatures of these solids vary inversely with current density so that magnetic materials of continuously varying ferromagnetism can be prepared with great convenience by this method. A hole-particle model is proposed which accounts for the data.

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