TEMPERATURE-DEPENDENCE OF THE MOSSBAUER PARAMETERS OF THE FE-NI PHASES IN THE SANTA CATHARINA METEORITE

被引:21
作者
DEGRAVE, E
VANDENBERGHE, RE
DEBAKKER, PMA
VANALBOOM, A
VOCHTEN, R
VANTASSEL, R
机构
[1] UNIV ANTWERP,PHYS & CHEM MINERAL LAB,B-2020 ANTWERP,BELGIUM
[2] ROYAL BELGIAN INST NAT SCI,B-1040 BRUSSELS,BELGIUM
来源
HYPERFINE INTERACTIONS | 1992年 / 70卷 / 1-4期
关键词
D O I
10.1007/BF02397499
中图分类号
O64 [物理化学(理论化学)、化学物理学]; O56 [分子物理学、原子物理学];
学科分类号
070203 ; 070304 ; 081704 ; 1406 ;
摘要
The temperature variation in the range 8-760K of the hyperfine parameters of the Fe-Ni phases in the Santa Catharina meteorite has been determined. It is suggested that the disordered 50-50 Fe-Ni phase actually consists of two distinct fractions, i.e. a completely disordered phase and one with intermediate long-range ordering parameter. The single-line subspectrum of the 28%-Ni Phase was found to display magnetic ordering below approximately 25K.
引用
收藏
页码:1009 / 1012
页数:4
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