Spectroscopic investigation on tetrahedral Co2+ in thin-film CoFe2O4

被引：0
作者：
Kwang Joo Kim
Jongho Park
机构：
[1] Konkuk University,Department of Physics
来源：
Journal of Sol-Gel Science and Technology | 2019年 / 92卷
关键词：
Spinel; Thin film; Ferrimagnetism; Magnetization; Raman spectroscopy;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
CoFe2O4 thin films with high crystalline quality have been fabricated on Si(100) substrates by using a sol–gel technique and post-annealing in air at 800 °C.Thin-film CoFe2O4 specimen exhibits magnetization (415 emu/cm3) that is larger than theoretical value (380 emu/cm3) expected for pure inverse spinel CoFe2O4.The enhanced magnetization of CoFe2O4 is ascribed to the migration of Co2+ ions to the tetrahedral sites of the spinel lattice.The inversion parameter of CoFe2O4 is estimated to be 0.70 through a curve-fitting analysis on the Raman scattering spectrum of the specimen.
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页码：40 / 44
页数：4
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