High saturation magnetization in La–Ce–Zn–doped M-type Sr-hexaferrites
Source abstract
Abstract
Abstract La–Ce–Zn-doped M-type Sr-hexaferries Sr 0.7 La 0.3− x Ce x Fe 11.7 Zn 0.3 O 19− d (0≤ x ≤0.3) were synthesized by solid-state reaction in both air and nitrogen atmospheres. The increased saturation magnetization of ~78 emu/g, which is ~5% higher than that of La–Zn-doped Sr-hexaferrite (Sr 0.7 La 0.3 Fe 11.7 Zn 0.3 O 19 ), could be obtained when the Ce-doped powder samples ( x ≥0.1) were either annealed in nitrogen at 1100 °C after calcination in air at 1200 °C or directly calcined in nitrogen at 1200 °C. The increased M S over the practical limit (~74 emu/g) is attributable to both the formation of magnetic composites with high- M S spinel phases and the M S increase of the M-type hexaferrite itself caused by oxygen vacancies.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Magnetic Properties and Synthesis of Ferrites · Multiferroics and related materials · Electromagnetic wave absorption materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (17)
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