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Träfflista för sökning "WFRF:(Mou Chung Yu) "

Search: WFRF:(Mou Chung Yu)

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  • Hsiung, Te-Chih, et al. (author)
  • Enhanced surface mobility and quantum oscillations in topological insulator Bi1.5Sb0.5Te1.7Se1.3 nanoflakes
  • 2013
  • In: Applied Physics Letters. - : AIP Publishing. - 0003-6951 .- 1077-3118. ; 103:16
  • Journal article (peer-reviewed)abstract
    • n this study, a series of Bi1.5Sb0.5Te 1.7Se1.3 (BSTS) flakes 80-nm to 140-μm in thickness was fabricated to investigate their metallic surface states. We report the observation of surface-dominated transport in these topological insulator BSTS nanoflakes. The achievement of surface-dominated transport can be attributed to high surface mobility (∼3000 cm2/V s) and low bulk mobility (12 cm2/V s). Up to 90% of the total conductance, the surface channel was estimated based on the thickness dependence of electrical conductance and the result of the Shubnikov-de Hass oscillations in a 200-nm BSTS. The nature of nontrivial Dirac surface states was also confirmed by the weak anti-localization effect.
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Type of publication
journal article (1)
Type of content
peer-reviewed (1)
Author/Editor
Zhao, Li (1)
Ding Yuan, Chen, 199 ... (1)
Hsiung, Te-Chih (1)
Lin, Yi-Hsin (1)
Mou, Chung-Yu (1)
Lee, Ting-Kuo (1)
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Wu, Maw-Kuen (1)
Chen, Yang-Yuan (1)
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University
Chalmers University of Technology (1)
Language
English (1)
Research subject (UKÄ/SCB)
Natural sciences (1)
Year
2013 (1)

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