THE CRYSTAL-FIELD AND EXCHANGE INTERACTIONS IN NDNI5, UGA2 AND UPD2AL3

被引:8
|
作者
RADWANSKI, RJ [1 ]
KIMNGAN, NH [1 ]
机构
[1] CTR SOLID STATE PHYS,PL-31150 KRAKOW,POLAND
关键词
ACTINIDES; F MAGNETISM; CRYSTAL-FIELD EFFECTS; KRAMERS DEGENERACY;
D O I
10.1016/0925-8388(94)05065-1
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
Magnetic and electronic properties of the hexagonal NdNi5, UGa2 and UPd2Al3 have been reviewed within a crystalline electric field approach in combination with exchange interactions. The fine electronic structure in these compounds associated with the Nd3+ and U3+ ions have been derived. The Nd3+ and U3+ ions, as Kramers f(3) systems, have the Kramers doublet ground state. In all compounds the Kramers doublet Gamma(8) is the charge-formed ground state. The calculations reproduce all known experimental observations, in particular the observed ordered magnetic moment and Curie or Neel temperature.
引用
收藏
页码:260 / 263
页数:4
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