ISSN 0862-5468 (Print), ISSN 1804-5847 (online) 

Ceramics-Silikáty 57, (2) 162 - 166 (2013)

Huber Štěpán 1,2, Sofer Zdeněk 1, Nádherný Ladislav 1, Jankovský Ondřej 1, Šimek Petr 1, Sedmidubský David 1, Maryško Miroslav 2
1 Department of Inorganic Chemistry, Institute of Chemical Technology, Technická 5, 166 28 Prague 6, Czech Republic
2 Institute of Physics of ASCR v.v.i., Cukrovarnická 10/112, 162 00 Prague 6, Czech Republic

Keywords: Zn spinel, Synthesis, Magnetic properties, Antiferromagnet, Bulk ZnO

We present the synthesis and characterization of ZnTM2O4 spinels (where TM = Cr3+, Mn3+, Fe3+ and Co3+), which are possible impurity phases in TM-doped ZnO that represent a large family of diluted magnetic semiconductors (DMS). The aim of our study was to find a uniform technique simplifying the whole synthesis of zinc spinels and their magnetic characterization. The synthesis was carried out by a conventional ceramic route with one calcination and two sintering steps. The structure of the prepared samples was proofed by X-ray diffraction analysis and magnetic properties were studied using SQUID magnetometer. Excluding the cobalt spinel, all spinels were singe phase and showed antiferromagnetic behavior.

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