The impact of metallic contacts on spin-polarized photocurrents in topological insulator Bi 2 Se 3 nanowires

@article{Meyer2020TheIO,
  title={The impact of metallic contacts on spin-polarized photocurrents in topological insulator Bi 2 Se 3 nanowires},
  author={N. Meyer and Kevin Geishendorf and Jakob Walowski and A Thomas and Markus M{\"u}nzenberg},
  journal={arXiv: Mesoscale and Nanoscale Physics},
  year={2020}
}
Recently, a new quantum phase, the topological insulator, has been vividly investigated in a variety of materials. Its unique bandstructure allows for optical generation and control of spin-polarized currents based on the circular photogalvanic effect. In this paper, we generate and distinguish the different photocurrent contributions via the the polarization of the driving light wave. We discuss the helicity-dependent spin-polarized current and the polarization independent thermoelectric… 
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Enhanced Photocurrent of the Ag Interfaced Topological Insulator Bi2Se3 under UV- and Visible-Light Radiations
TLDR
It is suggested that the appropriate Ag deposition enhances the photocurrent in, and increases the photosensitivity of, Bi2Se3 nanoplatelets under UV and visible light.