title: Structural and electrical characterization of Bi₂Se₃ nanostructures grown by metal-organic chemical vapor deposition.
abstract: We characterize nanostructures of Bi(2)Se(3) that are grown via metal-organic chemical vapor deposition using the precursors diethyl selenium and trimethyl bismuth. By adjusting growth parameters, we obtain either single-crystalline ribbons up to 10 μm long or thin micrometer-sized platelets. Four-terminal resistance measurements yield a sample resistivity of 4 mΩ·cm. We observe weak antilocalization and extract a phase coherence length l(ϕ) = 178 nm and spin-orbit length l(so) = 93 nm at T = 0.29 K. Our results are consistent with previous measurements on exfoliated samples and samples grown via physical vapor deposition.
authors: Department of Physics, Princeton University, Princeton, New Jersey 08544, United States.
authors: L D
authors: LD
authors: Alegria
authors: M D
authors: MD
authors: Schroer
authors: A
authors: A
authors: Chatterjee
authors: G R
authors: GR
authors: Poirier
authors: M
authors: M
authors: Pretko
authors: S K
authors: SK
authors: Patel
authors: J R
authors: JR
authors: Petta
mesh_terms: D001729:Bismuth / Q000737:chemistry*; D003460:Crystallization / Q000379:methods*; D004553:Electric Conductivity; D046911:Macromolecular Substances / Q000737:chemistry; D008422:Materials Testing; D053768:Metal Nanoparticles / Q000737:chemistry* / Q000648:ultrastructure*; D008968:Molecular Conformation; D009930:Organic Chemicals / Q000737:chemistry*; D010316:Particle Size; D058626:Plasma Gases / Q000737:chemistry; D012643:Selenium / Q000737:chemistry*; D013499:Surface Properties
chemical_list: D046911:Macromolecular Substances; D009930:Organic Chemicals; D058626:Plasma Gases; D012643:Selenium; D001729:Bismuth