MAGNETIC-PROPERTIES OF NACES2 BETWEEN 3.7 AND 297-K

被引：33

作者：

LUEKEN, H ^{[1
]}

BRUGGEMANN, W ^{[1
]}

BRONGER, W ^{[1
]}

FLEISCHHAUER, J ^{[1
]}

机构：

[1] RHEIN WESTFAL TH AACHEN,INST ORGAN CHEM,LEHRGEBIET THEORET CHEM,D-5100 AACHEN,FED REP GER

来源：

JOURNAL OF THE LESS-COMMON METALS | 1979年 / 65卷 / 01期

关键词：

D O I：

10.1016/0022-5088(79)90154-1

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：

The magnetic susceptibility of NaCeS2 has been measured between 3.7 and 297 K by the Faraday method. In this compound cerium has the oxidation state +3. Below 4.8 K, antiferromagnetic ordering exists. Only the high temperature region (T > 150 K) shows Curie-Weiss behavior. Below 150 K large deviations from the Curie-Weiss straight line are present. Cubic crystal field splitting in the J = 5 2 ground state of Ce3+ and isotropic exchange alone do not explain the data in the paramagnetic region, but an extended molecular field model, which takes into consideration different exchange interaction parameters for the Γ7 and Γ8 crystal field states, gives good agreement between the measured and calculated susceptibility values. © 1979.

引用

页码：79 / 88

页数：10

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