(C6H5CH2NH3)2CRBR3.3I0.7 - A NEW INSULATING FERROMAGNET WITH A CURIE-TEMPERATURE OF 51K

被引:18
作者
STAULO, G [1 ]
BELLITTO, C [1 ]
机构
[1] CNR,IST TEORIA & STRUTTURA ELETTRON & COMPORTAMENTO SPETTROCHIM COMPOSTI COORDINAZ,AREA RIC ROMA,I-00016 MONTEROTONDO,ITALY
关键词
FERROMAGNET; INSULATOR; HYSTERESIS;
D O I
10.1039/jm9910100915
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
A mixed-halide bis(benzylammonium)tetrahalogenochromate(II), (C6H5CH2NH3)2CrBr3.3I0.7, has been synthesized and characterized. The compound crystallizes in the layered K2NiF4 perovskite structure. It orders ferromagnetically at T(c) = 51 K, one of the highest critical (Curie) temperatures shown by magnetic insulators. A hysteresis loop typical of a soft ferromagnet has been obtained. At T = 6 K, the remnant magnetization is 4.2 x 10(3) cm3 mol-1 G and the coercive field is 130 G.
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页码:915 / 918
页数:4
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