Chemical Physics Letters ( IF 2.8 ) Pub Date : 2017-11-13 , DOI: 10.1016/j.cplett.2017.11.018 R. Masrour , A. Jabar , A. Benyoussef , M. Hamedoun
Monte Carlo simulation is used to study the magnetic properties of cluster dendrimers (CS) of core/shell (CDCS). The ground state phase diagrams of the CS of core/shell with mixed spins σ={±3/2;±1/2} and S={±2;±1;0} has been determined. The Néel temperature tN is obtained for two configurations (z=2 and z=3) and for different size of system. There is magnetic compensation at non-zero temperature for z=2. Effect of exchange interactions between the mixed spins, crystal field and size of system(L) on total magnetization has been given. Magnetic hysteresis cycle is given for different size of system, temperatures and exchange interactions.
中文翻译:
混合自旋为σ= 3/2和S = 2的核/壳簇状树枝状大分子的磁性:蒙特卡洛研究
蒙特卡罗模拟用于研究核/壳(CDCS)的簇状树枝状大分子(CS)的磁性。确定了具有混合自旋σ= {±3/2;±1/2}和S = {±2;±1; 0}的核/壳CS的基态相图。针对两种配置(z = 2和z = 3)以及不同的系统大小获得Néel温度t N。对于z = 2,在非零温度下存在磁补偿。给出了混合自旋,晶体场和体系尺寸(L)之间的交换相互作用对总磁化强度的影响。给出了系统不同尺寸,温度和交换相互作用的磁滞回线。