Magnetic properties of aerugite Co₁₀Ge₃O₁₆

Authors: Udod, L.; Petrakovski, G.; Vorotynov, A.; Bayukov, O.; Velikanov, D.; Kartashev, A.; Bovina, A.; Shvedenkov, Yu.; Baran, M.; Szymczak, R.

Source: Physics of the Solid State, Volume 49, Number 3, March 2007 , pp. 500-504(5)

Publisher: MAIK Nauka/Interperiodica

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Abstract:

This paper reports on the first study of the temperature and field dependences of the magnetization, heat capacity, and electrical properties of synthesized polycrystalline samples of aerugite Co₁₀Ge₃O₁₆, as well as on x-ray diffraction analysis of this compound. It is shown that the cobalt ions in this compound occupy three nonequivalent positions. The results of the experimental and theoretical studies suggest that aerugite is a ferrimagnet with two uncompensated magnetic moments of the cobalt atom per formula unit.

Keywords: 75.30.Kz; 75.40.-s; 75.40.Cx

Document Type: Research article

DOI: http://dx.doi.org/10.1134/S1063783407030201

Affiliations: 1: Email: luba@iph.krasn.ru

Publication date: 2007-03-01