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Spin polarization of photoelectrons from topological insulators

Cited 84 time in Web of Science Cited 87 time in Scopus
Authors

Park, Cheol-Hwan; Louie, Steven G.

Issue Date
2012-08
Publisher
American Physical Society
Citation
Physical Review Letters, Vol.109 No.9, p. 097601
Abstract
We show that the degree of spin polarization of photoelectrons from the surface states of topological insulators is 100% if fully polarized light is used as in typical photoemission measurements, and, hence, can be significantly higher than that of the initial state. Further, the spin orientation of these photoelectrons in general can also be very different from that of the initial surface state and is controlled by the photon polarization. A rich set of predicted phenomena have recently been confirmed by spin- and angle-resolved photoemission experiments. © 2012 American Physical Society.
ISSN
0031-9007
URI
https://hdl.handle.net/10371/202338
DOI
https://doi.org/10.1103/PhysRevLett.109.097601
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  • College of Natural Sciences
  • Department of Physics and Astronomy
Research Area Condensed Matter Physics, Nanoscale Photonics, Nanoscale Physics, 나노 물리와 나노 광자학, 응집 물질 물리

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