[4] UNIV SANTIAGO DE COMPOSTELA,FAC FIS,SANTIAGO COMPOSTE 15706,SPAIN
来源:
JOURNAL DE PHYSIQUE IV
|
1997年
/
7卷
/
C1期
关键词:
D O I:
10.1051/jp4:19971144
中图分类号:
O4 [物理学];
学科分类号:
0702 ;
摘要:
We present EPR and Susceptibility measurements performed on the perovskite-like family CanFe2Mnn-2O3n-1. On going from n=2 to n=3 Fe3(+) is progressively replaced by Mn4+. As a consequence the ordering temperature is depressed and frustrations in the magnetic interactions were found. The measurements are compared with the previously studied system CanFe2Tin-2O3n-1 where magnetic Mn4+ were replaced by non magnetic Ti4+. We discuss the results in terms of cationic ordering and super exchange interactions.