SYNTHESIS AND MAGNETIC PROPERTIES OF Zn SPINEL CERAMICS
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 who...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
University of Chemistry and Technology, Prague
2013-06-01
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| Series: | Ceramics-Silikáty |
| Subjects: | |
| Online Access: | http://www.ceramics-silikaty.cz/2013/pdf/2013_02_162.pdf |
| Summary: | 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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| ISSN: | 0862-5468 1804-5847 |