Analysis of the spin exchange interactions in the extended magnetic solids K2NiF4, K2CuF4, La2CuO4, Nd2CuO4, KNiF3, and KCuF3

被引：29

作者：

Koo, HJ ^{[1
]}

Whangbo, MH ^{[1
]}

机构：

[1] N Carolina State Univ, Dept Chem, Raleigh, NC 27695 USA

来源：

JOURNAL OF SOLID STATE CHEMISTRY | 2000年 / 151卷 / 01期

关键词：

spin exchange interactions; magnetically ordered materials; extended Huckel molecular orbital calculations;

D O I：

10.1006/jssc.2000.8627

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The spin exchange parameters J of the extended magnetic solids K2NiK4, K2CuF4, La2CuO4, Nd2CuO4, KNiF3, and KCuF3 were analyzed by examining the structures of their spin monomers and calculating the energy differences Delta e in the spin levels of their spin dimers. The trends in the observed J parameters are well explained in terms of the Delta e values obtained from extended Huckel molecular orbital calculations. The Delta e value of a spin dimer is related only to the antiferromagnetic component of its J, but the spin dimer analysis based on Delta e allows one to correlate the nature of the magnetic interaction with the structure of the spin dimer. (C) 2000 Academic Press.

引用

页码：96 / 101

页数：6

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