通过溶胶凝胶法合成取代的石榴石铁氧体纳米材料单相样品.取代的离子共有7种,分别是Ce3+和Fe3+ 、La3+ 、Nd3+ 、Sm3+ 、Gd3+ 、Dy3+.样品的粒度由Scherrer公式d＝kλ/Bcosθ计算得到,范围在50～60 nm之间.样品的晶体结构通过X-射线衍射仪和X-射线光电子能谱表征.样品的磁性能通过超导量子干涉仪(SQUID)进行表征.本文对影响样品磁性能的因素进行了分析,期望这些新的稀土复合石榴石铁氧体纳米材料能满足磁光材料应用领域对石榴石铁氧体不同饱和磁化强度的要求.
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