Anomalous electrical transport properties of nonstoichiometric nickel ferrite below room temperature
โ Scribed by S. Ghatak; M. Sinha; A.K. Meikap; S.K. Pradhan
- Book ID
- 113787309
- Publisher
- Elsevier Science
- Year
- 2011
- Tongue
- English
- Weight
- 757 KB
- Volume
- 46
- Category
- Article
- ISSN
- 0025-5408
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Nanocrystalline Mg-Zn ferrite is prepared by ball milling the stoichiometric powder mixture of MgO, ZnO and a-Fe 2 O 3 . The ternary Mg-Zn ferrite phase may not be obtained by heat treatment of the stoichiometric powder mixture of the oxides. The particle size of ferrite phase in the ball milled sam
Thermopower and electrical conductivity studies of some substituted nickel ferrites are undertaken as a function of composition and temperature. On the basis of the sign of the Seebeck coefficient S, the ferrites under investigation have been classified as n-type semiconductors. All the ferrites are