SOL-GEL SYNTHESIS OF THE MAGNETICALLY FRUSTRATED OXIDES SR2FESBO6 AND SRLAFESNO6

被引:34
作者
BATTLE, PD [1 ]
GIBB, TC [1 ]
HEROD, AJ [1 ]
HODGES, JP [1 ]
机构
[1] UNIV LEEDS,SCH CHEM,LEEDS LS2 9JT,W YORKSHIRE,ENGLAND
关键词
D O I
10.1039/jm9950500075
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
The use of the sol-gel synthesis method has been extended to include the preparation of stannates and antimonates from a citrate precursor. Samples of SrLaFeSnO6 and Sr2FeSbO6 have been prepared in a few hours. The structural and magnetic properties of the former are compared with those of a sample prepared over a period of several days by a solid-state route. The properties of Sr2FeSbO6 have been investigated by a combination of X-ray diffraction Mossbauer spectroscopy and SQUID magnetometry. The monoclinic perovskite structure has a partially (84%) ordered distribution of Fe and Sb cations over the six-coordinate sites; a transition to a magnetically frustrated phase occurs at 36 K.
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页码:75 / 78
页数:4
相关论文
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