Journal
APPLIED PHYSICS LETTERS
Volume 98, Issue 24, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.3599540
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- Center on Functional Engineered Nano Architectonics (FENA)
- Australian Research Council
- Queensland International Fellowship
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We report the experiment of high quality epitaxial growth of Bi2Se3 thin films on hexagonal CdS (0001) substrates using a solid source molecular-beam epitaxy system. Layer-by-layer growth of single crystal Bi2Se3 has been observed from the first quintuple layer. The size of surface triangular terraces has exceeded 1 mu m. Angle-resolved photoemission spectroscopy clearly reveals the presence of Dirac-cone-shape surface states. Magneto-transport measurements demonstrate a high Hall mobility of similar to 6000 cm(2)/V s for the as-grown Bi2Se3 thin films at temperatures below 30 K. These characteristics of Bi2Se3 thin films promise a variety of potential applications in ultrafast, low-power dissipation devices. (C) 2011 American Institute of Physics. [doi:10.1063/1.3599540]
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