Dynamic magnetoelectric coupling in "electronic ferroelectric" LuFe2O4

被引：59

作者：

Park, Ji Yong ^{[1
]}

Park, Jung Hwan

Jeong, Young Kyu

Jang, Hyun M.

机构：

[1] Pohang Univ Sci & Technol, Dept Mat Sci & Engn, Pohang 790784, South Korea

[2] Pohang Univ Sci & Technol, Dept Phys, Pohang 790784, South Korea

来源：

APPLIED PHYSICS LETTERS | 2007年 / 91卷 / 15期

关键词：

D O I：

10.1063/1.2798597

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Magnetoelectric (ME) coupling characteristics of LuFe2O4 were examined by monitoring the electrical voltage induced by an oscillating magnetic field under a static bias field (H-0). Interestingly, the room-temperature dynamic ME output exhibited a constant plateau behavior up to a certain static-field strength but showed a sudden drop above this critical value. In addition, two evidences of the intrinsic ME coupling were obtained by monitoring the pyroelectric response near the ferrimagnetic ordering temperature (similar to 250 K) and by examining the temperature-dependent magnetization near the ferroelectric transition point (similar to 345 K) between the two-dimensional charge-density-wave (CDW) state and the three-dimensional CDW state. (C) 2007 American Institute of Physics.

引用

页数：3

共 16 条

[1] Magnetoelectrics - A new route to magnetic ferroelectrics [J].