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  Photoelectron Spin-Polarization Control in the Topological Insulator Bi2Se3

Zhu, Z.-H., Veenstra, C. N., Zhdanovich, S., Schneider, M. P., Okuda, T., Miyamoto, K., et al. (2014). Photoelectron Spin-Polarization Control in the Topological Insulator Bi2Se3. Physical Review Letters, 112(7): 076802, pp. 1-5. doi:10.1103/PhysRevLett.112.076802.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0017-FE13-D Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0018-0C40-3
Genre: Journal Article

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 Creators:
Zhu, Z-H1, Author
Veenstra, C. N.1, Author
Zhdanovich, S.1, Author
Schneider, M. P.1, Author
Okuda, T.1, Author
Miyamoto, K.1, Author
Zhu, S-Y1, Author
Namatame, H.1, Author
Taniguchi, M.1, Author
Haverkort, M. W.2, Author              
Elfimov, I. S.1, Author
Damascelli, A.1, Author
Affiliations:
1external, ou_persistent22              
2Maurits Haverkort, Physics of Correlated Matter, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863455              

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 Abstract: We study the manipulation of the spin polarization of photoemitted electrons in Bi2Se3 by spin- and angle-resolved photoemission spectroscopy. General rules are established that enable controlling the photoelectron spin-polarization. We demonstrate the +/- 100% reversal of a single component of the measured spin-polarization vector upon the rotation of light polarization, as well as full three-dimensional manipulation by varying experimental configuration and photon energy. While a material-specific density-functional theory analysis is needed for the quantitative description, a minimal yet fully generalized two-atomic-layer model qualitatively accounts for the spin response based on the interplay of optical selection rules, photoelectron interference, and topological surface-state complex structure. It follows that photoelectron spin-polarization control is generically achievable in systems with a layer-dependent, entangled spin-orbital texture.

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Language(s): eng - English
 Dates: 2014-02-12
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Method: -
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Title: Physical Review Letters
  Other : Phys. Rev. Lett.
Source Genre: Journal
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Publ. Info: Woodbury, N.Y. : American Physical Society
Pages: - Volume / Issue: 112 (7) Sequence Number: 076802 Start / End Page: 1 - 5 Identifier: ISSN: 0031-9007
CoNE: /journals/resource/954925433406_1