Mn1.3Fe0.6P0.5-xBxSi0.5系列化合物的结构、磁性及电输运性能  

Structure,Magnetic Properties and Electrical Transport Behavior of Mn1.3Fe0.6P0.5-xBxSi0.5 Compounds

作　　者：赵丹 欧志强[1,2] 张天臣 哈斯朝鲁[1,2] 特古斯 ZHAO Dan;OU Zhi-qiang;ZHANG Tian-chen;Hasichulu;Tegus(College of Physics and Electronic Information,Inner Mongolia Normal University,Hohhot 010022,China;Inner Mongolia Key Laboratory for Physics and Chemistry of Functional Materials,Hohhot 010022,China)

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 [2]内蒙古自治区功能材料物理与化学重点实验室,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）》2020年第2期183-188,共6页Journal of Inner Mongolia Normal University(Natural Science Edition)

基　　金：国家自然科学基金资助项目(11864031);青年科技英才计划(NJYT-18-B15);内蒙古师范大学科研基金(2016ZRYB012)。

摘　　要：运用机械合金化和固相烧结法制备Mn1.3Fe0.6P0.5-xBxSi0.5(x=0,0.02,0.04,0.06)系列化合物样品,用X射线衍射和磁性测量对样品进行表征。XRD射线衍射表明,该系列化合物呈Fe2P-型六角结构,空间群为P62m;磁性测量表明,该系列化合物发生铁磁到顺磁的相变,热滞随着B含量的增加而呈减小的趋势,居里温度随着B含量的增加而升高,最大等温磁熵变随着B含量的增加而减小。该系列化合物的电阻率具有循环稳定性。A series compounds of Mn1.3Fe0.6P0.5-xBxSi0.5(x=0,0.02,0.04,0.06)were prepared by mechanical alloying and solid-state sintering.The properties of the compounds were analyzed by X-ray diffraction(XRD)and magnetic measurement.The XRD results showed that the compounds formed in Fe2P-type hexagonal structure with space group P62m.The magnetic measurements indicated that the compounds underwent a ferromagnetic to paramagnetic phase transition and with the increase of B content,the thermal hysteresis decreased,the Curie temperature increased,the maximal magnetic entropy change decreased.We also found that the resistivity of the compounds was stable in thermal cycling.

关 键 词：居里温度 热滞 磁熵变 电阻率 

分 类 号：O482.54[一般工业技术—材料科学与工程]