3D-CHARGE DENSITY DISTRIBUTION AND CRYSTAL FIELD IN FECL2 . A MOSSBAUER STUDY

被引：13

作者：

HAZONY, Y

OK, HN

机构：

[1] Department of Chemical Engineering, Princeton University, Princeton

[2] Solid State and Materials Laboratory, Princeton University, Princeton

[3] Department of Physics, Yonsei University, Seoul

来源：

PHYSICAL REVIEW | 1969年 / 188卷 / 02期

关键词：

D O I：

10.1103/PhysRev.188.591

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Available Mössbauer quadrupole-splitting (QS) data for FeCl2 are analyzed in terms of crystal field and covalency parameters. It is shown that the temperature variation of QS in the paramagnetic phase is consistent with a large expansion of the 3d electronic charge density distribution (α2=r-3r-300.4) as was previously predicted from the systematics of QS and isomer shift in the halides. The analysis yields a large ratio of 8.4 between the trigonal field component and the spin-orbit coupling constant, which is consistent with the Ising model proposed by Kanamori for the low-temperature magnetic properties of FeCl2. © 1969 The American Physical Society.

引用

页码：591 / +

页数：1

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