微量Co2+-Si4+取代对多晶石榴石铁氧体材料旋矩磁性能的影响

Effects of trace amounts of Co2+-Si4+combined substitution on the gyromagnetic and rectangular loop properties of polycrystalline garnet microwave ferrite

王文鑫 ¹翁兆平 ¹徐茂忠¹

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作者信息

1. 南京国睿微波器件有限公司,江苏南京 210061
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摘要

采用传统陶瓷工艺制备了多晶石榴石铁氧体,研究了微量Co2+-Si4+联合取代对GdCaSnV-YIG、GdCaZrV-YIG、GdCaInV-YIG和GdAl-YIG材料旋矩磁性能的影响.结果表明,Co2+-Si4+联合取代GdAl-YIG可使其矫顽力显著增高,而Co2+-Si4+取代GdCaSnV-YIG、GdCaZrV-YIG和GdCaInV-YIG,可调节其矫顽力和剩磁比.当Co2+-Si4+取代量为0.015时得到GdCaSnV-YIG的矫顽力为0.17 Oe,取代量为0.025时得到GdCaZrV-YIG的矫顽力为0.23 Oe,取代量大于等于0.035时三者的剩磁比均能达到0.79或以上.

Abstract

Polycrystalline samples of yttrium iron garnet(YIG)were prepared by conventional technique.The effect of trace amounts of Co2+-Si4+combined substitution on the electromagnetic and square-loop properties of GdCaSnV-YIG,GdCaZrV-YIG,GdCaInV-YIG and GdAl-YIG materials was studied.The results show that coercivity of Co2+-Si4+substituted GdAl-YIG increases significantly,while for Co2+-Si4+substituted GdCaSnV-YIG,GdCaZrV-YIG and GdCaInV-YIG,can regulate their coercivity and remanent magnetisation ratio.The coercivity 0.17 Oe of GdCaSnV-YIG is obtained when the Co2+-Si4+substitution is 0.015,the coercivity 0.23 Oe of GdCaZrV-YIG is obtained when the substitution is 0.025,and the remanent magnetisation ratios of all the three samples reach 0.79 or more when the substitution is greater than or equal to 0.035.

关键词

石榴石铁氧体/Co2+-Si4+取代/旋矩磁材料/剩磁比

Key words

garnet ferrite/Co2+-Si4+combined substitution/gyromagnetic and rectangular loop magnetic material/remanence ratio

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出版年

2024

磁性材料及器件

中国西南应用磁学研究所

磁性材料及器件

影响因子：0.358

ISSN：1001-3830

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