摘要
The molecular-based magnetic materials AFe11 Fe111（C2O4）3 have a honeycomb structure in which FeII （S = 2） and FeIH （S= 5/2） occupy sites alternately. They can be described as mixed spin-2 and spin-5/2 Ising model with ferrimagnetic interlayer coupling. The influences of the transverse field on the internal energy and the specific heat of the molecalar-based magnetic system have been studied numerically by using the effective-field theory with self-spin correlations and the differential operator technique.
基金
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 2008533
