Formation of a high Tc electron-hole liquid in diamond -: art. no. 057404

被引：70
作者：
Shimano, R
Nagai, M
Horiuch, K
Kuwata-Gonokami, M
机构：
[1] Univ Tokyo, Dept Appl Phys, Bunkyo Ku, Tokyo 1138656, Japan
[2] Japan Sci & Technol Corp, ERATO, Cooperat Excitat Project, Bunkyo Ku, Tokyo 1138656, Japan
[3] Tokyo Gas Co Ltd, R&D Planning Dept, Frontier Lab, Tsurumi Ku, Yokohama, Kanagawa 2300045, Japan
来源：
PHYSICAL REVIEW LETTERS | 2002年 / 88卷 / 05期
关键词：
D O I：
10.1103/PhysRevLett.88.057404
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We report on the observation of electron-hole (e-h) liquid (EHL) in diamond by time-resolved luminescence measurements under an intense femtosecond photoexcitation above the band gap. The EHL luminescence band is observed below the e-h plasma band, showing a finite rise time of several tens of picoseconds. The rise time, which corresponds to the nucleation and the growth of the e-h droplets, plummets on approaching the EHL critical temperature. Time-resolved spectral shape analysis reveals a very high carrier density of 1 X 10(20) cm(-3) and very high critical temperature of T-c = 165 K of EHL.
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收藏
页码：574041 / 574044
页数：4
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