尖晶石结构Li1.33Mn1.67O4的磁学性质

J4 ›› 2011, Vol. 49 ›› Issue (03): 537-539.

尖晶石结构Li_1.33Mn_1.67O₄的磁学性质

王丽萍¹, 高春歌², 陈红³, 王春忠², 陶莹^4

1. 白城师范学院物理系, 吉林白城 137000|2. 吉林大学物理学院, 长春 130012|3. 北华大学物理学院, 吉林吉林132013|4. 吉师范大学教育技术与传播学院, 吉林四平 136000

收稿日期:2010-12-16 出版日期:2011-05-26 发布日期:2011-06-15
通讯作者: 陶莹 E-mail:taoy17@sohu.com

Magnetic Properties of |Li_1.33Mn_1.67O₄ with Spinel Structure

WANG Li ping¹, GAO Chun ge², CHEN Hong³, |WANG Chun zhong², TAO Ying^4

1. Department of Physics, Baicheng Normal University, Baicheng 137000, Jilin Province, China|2. Collge of Physics, Jilin University, Changchun 130012, China;3. Collge of Physics, Beihua University, Jilin 132013, Jilin Province, China|4. College of Education Technology and Communications, Jilin Normal University, Siping 136000, Jilin Province, China

Received:2010-12-16 Online:2011-05-26 Published:2011-06-15
Contact: TAO Ying E-mail:taoy17@sohu.com

摘要/Abstract

摘要：

采用固相烧结法制备尖晶石结构Li_1.33Mn_1.67O₄样品. 不同磁场下的直流磁化率曲线、磁滞回线和交流磁化率均表明该样品在低温呈团簇自旋玻璃态. 通过计算材料的几何失措因子, 可知掺杂非磁性Li离子破坏了失措的Kagome点阵, 从而诱导铁磁与反铁磁相互作用的竞争, 使体系呈自旋玻璃态. 

关键词: 自旋玻璃态, 几何失措, 尖晶石结构

Abstract:

The sample of Li_1.33Mn_1.67O₄ with spinel structure was prepared by means of solid state sintering technology. The ground state of Li_1.33Mn_1.67O₄ shows cluster spin glass state identified by analyzing DC magnetization under different magnetic fields, magnetic hysteresis and AC susceptibility. The calculating results of geometrical frustration show that nonmagnetic Li+\|doping destroyed the frustrated kagome lattice, induced the competition between ferromagnetic and antiferromagnetic interaction, and made the system present spin glass state.

Key words: spin glass state, geometrical frustration, spinel structure

中图分类号:

O482

王丽萍, 高春歌, 陈红, 王春忠, 陶莹. 尖晶石结构Li_1.33Mn_1.67O₄的磁学性质[J]. J4, 2011, 49(03): 537-539.

WANG Li-Ping, GAO Chun-Ge, CHEN Gong, WANG Chun-Zhong, DAO Ying. Magnetic Properties of |Li_1.33Mn_1.67O₄ with Spinel Structure[J]. J4, 2011, 49(03): 537-539.

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尖晶石结构Li_1.33Mn_1.67O₄的磁学性质

Magnetic Properties of |Li_1.33Mn_1.67O₄ with Spinel Structure

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