【摘 要】
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<正> The molecular-based magnetic materials AFe~ⅡFe~Ⅲ(C_2O_4)_3have a honeycomb structure in which Fe~Ⅱ(S=2)and Fe~Ⅲ(S=5/2)occupy sites alternately.They can
【基金项目】
:
Supported by the Natural Science Foundation of Liaoning Province under Grant No. 20041021, the Scientific Foundation of the Educational Department of Liaoning Province under Grant Nos. 20060638 and 20