Additional transition induced by magnetoelectric interaction in ferroelectromagnet Pb(Fe1/2Nb1/2)O3

被引：4
|
作者：
Yang, Y [1 ]
Huang, HB
Shen, HL
Liu, JM
Liu, ZG
机构：
[1] Nanjing Univ Aeronaut & Astronaut, Coll Mat Sci & Technol, Nanjing 210016, Peoples R China
[2] Nanjing Univ, Nanjing Natl Lab Microstruct, Nanjing 210093, Peoples R China
来源：
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA | 2006年 / 16卷 / 01期
基金：
中国国家自然科学基金;
关键词：
Pb(Fe1/2Nb1/2)O-3; ferroelectromagnet; magnetoelectric coupling; magnetoelectric interaction; orbital hybridization;
D O I：
10.1016/S1003-6326(06)60020-4
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
Besides the two phase transitions known in ferroelectromagnets, an additional transition was observed experimentally in Pb(Fe1/2Nb1/2)O-3 and the possible mechanism was explored. The magnetic moment shows that anomalous increases when the temperature goes down away from the Neel temperature of 20 - 30 K. The existence of the hysteresis verifies the weak ferromagnetic property. This additional phase transition is considered to originate from the magnetoelectric coupling between the ferroelectric and antiferromagnetic orders in this compound. From the Mossbauer parameter analysis, it is confirmed that the hybridization of the O 2p, Fe 3d and Nb 4d electron states makes the realization of magnetoelectric coupling possible.
引用
收藏
页码：117 / 121
页数：5
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