Reversible and bistable terahertz radiation from magnetoresistive Pr0.7Ca0.3MnO3 thin films

被引：11
|
作者：
Kida, N [1 ]
Tonouchi, M [1 ]
机构：
[1] Osaka Univ, Res Ctr Superconductor Photon, Osaka 5650871, Japan
来源：
APPLIED PHYSICS LETTERS | 2003年 / 82卷 / 20期
关键词：
D O I：
10.1063/1.1575507
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Reversible and bistable terahertz (THz) radiation by sweeping the temperature has been observed in a dipole-type photoswitching device fabricated on magnetoresistive charge-ordered manganite Pr0.7Ca0.3MnO3 thin film. Based on simultaneous measurements of the photocurrent, we show that this THz functionality of Pr0.7Ca0.3MnO3 arises from the instability of metallic patches embedded with a charge-ordered insulating phase, which is created by the illumination of visible light under an electric field at constant temperature, and that it can also be controlled by a subsequent change of temperature. (C) 2003 American Institute of Physics.
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收藏
页码：3412 / 3414
页数：3
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