La0.55Eu0.1Sr0.15Na0.2MnO3的制备及其磁性

La_0.55Eu_0.1Sr_0.15Na_0.2MnO₃的制备及其磁性

冯明, 李娜, 徐仕翀, 李海波

吉林师范大学凝聚态物理与材料科学研究所, 吉林四平 136000

收稿日期:2007-08-04 修回日期:1900-01-01 出版日期:2008-07-26 发布日期:2008-07-26
通讯作者: 李海波

Preparation and Magnetic Properties of La_0.55Eu_0.1Sr_0.15Na_0.2MnO₃

FENG Ming, LI Na, XU Shi chong, LI Hai bo

Institute of Condensed Matter Physics and Materials Science, Jilin Normal University, Siping 136000, Jilin Province, China

Received:2007-08-04 Revised:1900-01-01 Online:2008-07-26 Published:2008-07-26
Contact: LI Hai bo

摘要/Abstract

摘要： 采用溶胶\|凝胶方法制备钙钛矿型稀土锰氧化物La_0.55Eu_0.1Sr_0.15Na_0.2MnO₃, 利用X射线衍射(XRD)、振动样品磁强计(VSM)和磁性测量系统(MPMS)对样品的结构、居里温度、磁卡效应和磁电阻效应进行研究. 结果表明, 样品具有单相六角钙钛矿结构, 居里温度为310 K, 磁电阻变化率为11.18％, 最大磁熵变为1.45 J/(kg·K). 

关键词: 锰氧化物, 居里温度, 磁熵变, 磁电阻

Abstract: Perovskite\|type manganites La_0.55Eu_0.1Sr_0.15Na_0.2MnO₃ were prepared by sol\|gel method. The structure, Curie temperature, magnetocalorie effect, and magnetoresistive effect of the sample were investigated by XRD, VSM, and MPMS. The results show that this material is a single\|phase structure of hexagonal perovskite without other mixed-phases, and the Curie temperature is 310 K. It is found that its magnetoresistance reaches 11.18％, and the maximum magnetic entropy change (ΔSM) reaches a value of 1.45 J/(kg·K) for La_0.55Eu_0.1Sr_0.15Na_0.2MnO₃.

Key words: manganite, Curie temperature, magnetic entropy change, magnetoresistance

中图分类号:

TB303

冯明, 李娜, 徐仕翀, 李海波. La_0.55Eu_0.1Sr_0.15Na_0.2MnO₃的制备及其磁性[J]. J4, 2008, 46(04): 747-750.

FENG Ming, LI Na, XU Shi chong, LI Hai bo. Preparation and Magnetic Properties of La_0.55Eu_0.1Sr_0.15Na_0.2MnO₃[J]. J4, 2008, 46(04): 747-750.

[1]	杨洁, 苏宁宁, 彭刚. Fe₃O₄的高压电学性质[J]. J4, 2013, 51(01): 124-127.
[2]	赵辉, 王向群, 杜晓波, 于涛, 王冬梅, 董义, 张艳香. TiO₂复合对La_2/3(Ca_0.65Ba_0.35)_1/3MnO₃电输运和磁电阻效应的影响[J]. J4, 2008, 46(04): 729-733.
[3]	费珊珊，花修艺，董德明，李鱼，陈潇君. 实验室制备的铁、锰氧化物与自然水体生物膜中相应组分吸附铅、镉特征比较[J]. J4, 2005, 43(05): 702-706.
[4]	董凤霞, 郑荧光, 田宏伟, 丁涛, 阚东武, 高彦君, 赵竹弟, 郑伟涛. 电子顺磁共振研究巨磁电阻锰氧化物La_0.67Ca_0.33MnO₃的顺磁到铁磁的相变[J]. J4, 2004, 42(04): 591-593.
[5]	李鱼，董德明，杨帆，郑娜，金钦汉. 自然水体生物膜中铁、锰氧化物的形态分析[J]. J4, 2003, 41(03): 374-377.
[6]	董德明，李鱼，花修艺，张菁菁，康春莉，姚军. 淡水中生物膜主要化学组分选择性萃取分离的比较[J]. J4, 2002, 40(02): 209-211.
[7]	苏峰，王文全，王向群，王学凤，赵素芬，杜晓波，闫羽，金汉民. Nd₂(Co_1-xFe_x)_17-yCr_y化合物的结构和磁性研究[J]. J4, 2002, 40(02): 170-174.

La_0.55Eu_0.1Sr_0.15Na_0.2MnO₃的制备及其磁性

Preparation and Magnetic Properties of La_0.55Eu_0.1Sr_0.15Na_0.2MnO₃

PDF (PC)

赞

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 7

Metrics

本文评价

推荐阅读 10