Ultrafast optical excitation of a persistent surface-state population in the topological insulator Bi2Se3. - ORA - Oxford University Research Archive

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

Abstract:: 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 metastable population at the bulk conduction band edge, which feeds a nonequilibrium population of the surface state persisting for >10 ps. This unusually long-lived population of a metallic Dirac surfa...
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Publication status:: Published

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APA Style

Sobota, J., Yang, S., Analytis, J., Chen, Y., Fisher, I., Kirchmann, P., & Shen, Z. (2012). Ultrafast optical excitation of a persistent surface-state population in the topological insulator Bi2Se3. Physical Review Letters, 108(11), 117403.

MLA Style

Sobota, J., et al. “Ultrafast Optical Excitation of a Persistent Surface-State Population in the Topological Insulator Bi2Se3.” Physical Review Letters, vol. 108, no. 11, 2012, p. 117403.

Chicago Style

Sobota, J, S Yang, J Analytis, Y Chen, I Fisher, P Kirchmann, and Z Shen. 2012. “Ultrafast Optical Excitation of a Persistent Surface-State Population in the Topological Insulator Bi2Se3.” Physical Review Letters 108 (11): 117403.
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Publisher copy:: 10.1103/physrevlett.108.117403

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+ Sobota, J More by this author

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+ Yang, S More by this author

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+ Analytis, J More by this author

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+ Chen, Y More by this author

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+ Fisher, I More by this author

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Bibliographic Details

Journal:: Physical Review Letters
Volume:: 108
Issue:: 11
Pages:: 117403
Publication date:: 2012-03-01
DOI:: 10.1103/physrevlett.108.117403
EISSN:: 1079-7114
ISSN:: 0031-9007

Item Description

Language:: English
Pubs id:: pubs:323516
UUID:: uuid:ac7bc455-d5e4-4a62-ac0f-ba4d65c2c1fc
Local pid:: pubs:323516
Source identifiers:: 323516
Deposit date:: 2012-12-19

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Copyright date:: 2012

Licence:: Terms and Conditions of Use for Oxford University Research Archive

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