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.
作者
赵丹
欧志强
张天臣
哈斯朝鲁
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)
出处
《内蒙古师范大学学报（自然科学汉文版）》
CAS
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)。
关键词
居里温度
热滞
磁熵变
电阻率
Curie temperature
thermal hysteresis
magnetic entropy change
resistivity
