Ultrafast optical excitation of a persistent surface-state population in the topological insulator Bi2Se3.

Ultrafast optical excitation of a persistent surface-state population in the topological insulator Bi2Se3.

Using femtosecond time- and angle-resolved photoemission spectroscopy, we investigated the nonequilibrium dynamics of the topological insulator Bi2Se3. We studied p-type Bi2Se3, in which the metallic Dirac surface state and bulk conduction bands are unoccupied. Optical excitation leads to a metastab...

Bibliografske podrobnosti
Main Authors:	Sobota, J, Yang, S, Analytis, J, Chen, Y, Fisher, I, Kirchmann, P, Shen, Z
Format:	Journal article
Jezik:	English
Izdano:	2012

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