Study of the dc resistivity and thermoelectric power in Mn-substituted Ni–Zn ferrites
Source abstract
Abstract
The electrical resistivity and thermoelectric power as a function of temperature and Mn concentration for Ni0.6-t Mn t Zn0.4Fe2O4 (t = 0, 0.1, 0.2, 0.3, 0.4 and 0.5) have been studied. It was observed that temperature variation of resistivity exhibits two breaks. Each break is associated with a change in activation energy. The activation energy in the paramagnetic region is found to be greater than that in the ferrimagnetic one. Moreover, it was found that the resistivity increases with increasing Mn content. The sign of thermoelectric power measurements revealed n-type conduction for all investigated samples. The results are explained according to the spin polaron model.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Magnetic Properties and Synthesis of Ferrites · Electrical and Thermal Properties of Materials · Multiferroics and related materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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