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 singl...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.展开更多
Using the mixed rescaling model,the main features of the European Muon Collaboration eifec t can be explained.Then the ratio of cross sections,free proton(p)-bound nucleon of Iron(Fe)to free proton-free proton,for lar...Using the mixed rescaling model,the main features of the European Muon Collaboration eifec t can be explained.Then the ratio of cross sections,free proton(p)-bound nucleon of Iron(Fe)to free proton-free proton,for large-P_(T) direct photon production is calculated.展开更多
文摘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.
基金Supported in part by the Provincial Science Foundation of Fujian。
文摘Using the mixed rescaling model,the main features of the European Muon Collaboration eifec t can be explained.Then the ratio of cross sections,free proton(p)-bound nucleon of Iron(Fe)to free proton-free proton,for large-P_(T) direct photon production is calculated.
