RTiGe(R=Dy,Ho)中的场致磁相变(英文)  

Field-induced Magnetic Phase Transitions in RTiGe (R=Dy,Ho)

作　　者：达古拉[1] 特古斯[1] 

机构地区：[1]内蒙古师范大学物理与电子信息学院,内蒙古呼和浩特010022

出　　处：《内蒙古师范大学学报（自然科学汉文版）》2004年第3期227-231,共5页Journal of Inner Mongolia Normal University(Natural Science Edition)

基　　金：ProjectSupportedbytheNationalNaturalScienceFoundationofChina(50261003)andtheNaturalScienceFoundationofInnerMongolia( 2 0 0 2 0 80 2 0 111)

摘　　要：利用磁测方法研究RTiGe(R =Dy ,Ho)化合物的磁相变 ,结果表明 ,该化合物中存在场致磁相变 .在双子晶格模型下通过磁测数据计算了磁晶格之间的交换耦合常数n11和n12 ,确定了RTiGe(R =Dy ,Ho)化合物临界场与温度的关系 ,并在磁相互作用的基础上对该化合物的磁性和磁相变进行了讨论 .Magnetic phase transitions in the RTiGe (R=Dy and Ho) compounds are investigated by means of magnetization measurements.The results show that the RTiGe compounds display a field-induced magnetic phase transition.The magnetic sublattice exchange coupling constants n_(11) and n_(12) are determined from the magnetization data based on two-sublattice model.By that the temperature dependence of the critical fields is determined from the magnetization measurements for the RTiGe (R=Dy and Ho) compounds.The magnetic properties and the magnetic phase transitions observed in these compounds are discussed based on the magnetic interactions obtained from the measurements.

关 键 词：场致磁相变 三元稀土锗化物 反铁磁性 场致磁相变 磁晶格 

分 类 号：O482.52[理学—固体物理]