Helicity-dependent terahertz emission spectroscopy of topological insulator Sb2Te3 thin films

淡江大學機構典藏 > 理學院 > 物理學系暨研究所 > 期刊論文 > Item 987654321/115551

jsp.display-item.identifier=請使用永久網址來引用或連結此文件: https://tkuir.lib.tku.edu.tw/dspace/handle/987654321/115551

题名:	Helicity-dependent terahertz emission spectroscopy of topological insulator Sb2Te3 thin films
作者:	Tu, C.-M.;Chen, Y.-C.;Huang, P.;Chuang, P.-Y.;Lin, M.-Y.;Cheng, C.-M.;Lin, J.-Y.;Juang, J.-Y.;Wu, K.-H.;Huang, J.-C.A.;Pong, W.-F.;Kobayashi, T.;Luo, C.-W.
日期:	2017-11-06
上传时间:	2018-11-08 12:11:42 (UTC+8)
出版者:	APS Physics
摘要:	We report on helicity-dependent terahertz emissions that originate from the helicity-dependent photocurrents in topological insulator S b 2 T e 3 thin films due to ultrafast optical excitation. The polarity of the emitted terahertz radiation is controlled by both the incident angle and the helicity of optical pulses. Using an unprecedented decomposition-recombination procedure in the time domain, the signals of the Dirac fermions are fully separated from bulk contributions. These results provide insights into the optical coupling of topological surface states and open up opportunities for applying helicity-dependent terahertz emission spectroscopy in spintronics.
關聯:	Physical Review B-Condensed Matter 96(19), p.195407
DOI:	10.1103/PhysRevB.96.195407
显示于类别:	[物理學系暨研究所] 期刊論文

文件中的档案:

档案	描述	大小	格式	浏览次数
Helicity-dependent terahertz emission spectroscopy of topological insulator Sb2Te3 thin films.pdf		5253Kb	Adobe PDF	2	检视/开启
index.html		0Kb	HTML	195	检视/开启

在機構典藏中所有的数据项都受到原著作权保护.

TAIR相关文章