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...
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Bibliographic Details
| Main Authors: |
Sobota, J,
Yang, S,
Analytis, J,
Chen, Y,
Fisher, I,
Kirchmann, P,
Shen, Z |
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| Format: | Journal article
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| Language: | English |
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| Published: |
2012
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