Experimental Realization of a Topological p-n Junction by Intrinsic Defect Grading.
basic_science · Level V
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- Record sourced from PubMed, PMID 26780377.
- Also identified by DOI 10.1002/adma.201504771.
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Abstract
A Bi2Te3 single crystal is grown with the modified Bridgman technique. The crystal has a nominal composition with a Te content of 61 mol% resulting in the existence of two distinct regions, p- and n-doped, respectively; color-coded tunneling spectra are taken over 60 nm at the transition region.