Magnetic properties of Ce–Mn substituted M-type Sr-hexaferrites
Source abstract
Abstract
Abstract Ce–Mn substituted M-type Sr-hexaferrites (SrM) of Sr 1− x Ce x Fe 11− x Mn x O 19 and Sr 1− x Ce x Fe 11−2 x Mn 2 x O 19 (0≤ x ≤0.2) were synthesized by solid-state reaction routes. Ce–Mn doped SrM exhibited an increased coercivity ( H C ) of ~5 kOe, which is 37% higher than that of non-substituted SrM ( x =0). This high H C could be obtained without reducing the saturation magnetization ( M S ) when the optimally doped ( x =0.1) powder samples were calcined at 1200 °C. The Ce–Mn doped SrM samples also showed enhanced thermal stability of H C , characterized by ~60% lower temperature coefficient for H C compared to the undoped SrM. The increased H C and the higher thermal stability of H C are attributable to both the grain refinement and the enhancement of magneto-crystalline anisotropy in the Ce–Mn SrM.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Magnetic Properties and Synthesis of Ferrites · Multiferroics and related materials · Magnetic properties of thin films
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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