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Ferrimagnetic Properties of Bond Dilution Mixed Blume-Capel Model with Random Single-Ion Anisotropy
作者姓名:LIU  Lei  YAN  Shi-Lei
作者单位:[1]Department of Physics, Suzhou University, Suzhou 215006, China [2]Jiangsu Key Loboratory of Thin Films, Suzhou University, Suzhou 215006, China [3]CCAST (World Loboratory), P.O. Box 8730, Beijing 100080, China
基金项目:The project supported partly by the Natural Science Key Foundation of Jiangsu Province of China under Grant No. 03KJA140117 and the 0pen Foundation of Jiangsu Key Laboratory of Thin Films under Grant No. K2022
摘    要:We study the ferrimagnetic properties of spin 1/2 and spin-1 systems by means of the effective field theory. The system is considered in the framework of bond dilution mixed Blume-Capel mode/ (BCM) with random single-ion anisotropy. The investigation of phase diagrams and magnetization curves indicates the existence of induced magnetic ordering and single or multi-compensation points. Special emphasis is placed on the influence of bond dilution and random single-ion anisotropy on normal or induced magnetic ordering states and single or multi-compensation points. Normal magnetic ordering states take on new phase diagrams with increasing randomness (bond and anisotropy), while anisotropy induced magnetic ordering states are always occurrence no matter whether concentration of anisotropy is large or small. Existence and disappearance of compensation points rely strongly on bond dilution and random singleion anisotropy. Some results have not been revealed in previous papers and predicted by Néel theory of ferrimagnetism.

关 键 词:亚铁磁性  Blume-Capel模型  感应磁场  补偿点  离子  各向异性
收稿时间:2005-03-07
修稿时间:2005-03-07

Ferrimagnetic Properties of Bond Dilution Mixed Blume-Capel Model with Random Single-Ion Anisotropy
LIU Lei YAN Shi-Lei.Ferrimagnetic Properties of Bond Dilution Mixed Blume-Capel Model with Random Single-Ion Anisotropy[J].Communications in Theoretical Physics,2005,44(4):743-748.
Authors:LIU;Lei;YAN;Shi-Lei
Abstract:
Keywords:ferrimagnetic property  mixed Blume-Capel model  induced magnetic ordering  compensation point  bond dilution and random single-ion anisotropy
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