Terahertz emission from a stack of intrinsic Josephson junctions in Pb-doped Bi2Sr2CaCu2O8+δ

被引：19
|
作者：
Tsujimoto, M. [1 ]
Maeda, Y. [1 ]
Kambara, H. [1 ]
Elarabi, A. [1 ]
Yoshioka, Y. [1 ]
Nakagawa, Y. [1 ]
Wen, Y. [1 ]
Doi, T. [1 ]
Saito, H. [1 ]
Kakeya, I. [1 ]
机构：
[1] Kyoto Univ, Dept Elect Sci & Engn, Nishikyo Ku, Kyoto 6158510, Japan
来源：
SUPERCONDUCTOR SCIENCE & TECHNOLOGY | 2015年 / 28卷 / 10期
关键词：
terahertz emission; intrinsic Josephson junction; Pb-doped Bi-2212; THZ RADIATION; ANISOTROPY; EDGE;
D O I：
10.1088/0953-2048/28/10/105015
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We observe continuous terahertz-wave emission from a stack of intrinsic Josephson junctions made of slightly Pb-doped Bi2Sr2CaCu2O8+delta. We investigate how Pb doping affects the c-axis current-voltage and emission characteristics. The terahertz emission spectra are measured by Fourier-transform infrared spectroscopy and reveal that the emission frequency is remarkably increased by Pb doping, an effect that we attribute to cavity resonance.
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页数：5
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