SPECIFIC-HEAT OF FE3O4-0F0, FE3O4-0.1F0.1, FE3O4-025F0.25 IN THE NEIGHBORHOOD OF THE VERWEY TEMPERATURE

被引:13
作者
RIGO, MO [1 ]
KLEINCLAUSS, J [1 ]
POINTON, AJ [1 ]
机构
[1] PORTSMOUTH POLYTECH,DEPT PHYS,PORTSMOUTH PO1 2DZ,HAMPSHIRE,ENGLAND
关键词
D O I
10.1016/0038-1098(78)90661-0
中图分类号
O469 [凝聚态物理学];
学科分类号
070205 ;
摘要
The partial substitution of oxygen by fluorine, in magnetite, has allowed us to increase the concentration of the Fe2+ ions and to modify the ratio ( Fe2+ Fe3+)oct. without introducing a foreign cation. Studies of specific heat and X-ray diffraction at temperatures near that of the Verwey temperature show that the crystallographic transformation is linked to the existence of octahedral Fe2+ ions. © 1978.
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页码:1013 / 1016
页数:4
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