Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Structural and Electrical Characterization of Bi2Se3 Nanostructures
  Grown by Metalorganic Chemical Vapor Deposition   We characterize nanostructures of Bi2Se3 that are grown via metalorganic
chemical vapor deposition using the precursors diethyl selenium and trimethyl
bismuth. By adjusting growth parameters, we obtain either single-crystalline
ribbons up to 10 microns long or thin micron-sized platelets. Four-terminal
resistance measurements yield a sample resistivity of 4 mOhm-cm. We observe
weak anti-localization and extract a phase coherence length l_phi = 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.

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The categories of this paper are: quant-ph
2
The categories of this paper are: math
23
The categories of this paper are: solv-int
31
The categories of this paper are: ao-sci
20
The categories of this paper are: acc-phys
17
The categories of this paper are: q-fin
6
The categories of this paper are: astro-ph
11
The categories of this paper are: hep-lat
10
The categories of this paper are: q-bio
24
The categories of this paper are: dg-ga
0
The categories of this paper are: hep-ph
5
The categories of this paper are: gr-qc
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The categories of this paper are: nucl-th
1
The categories of this paper are: cs
9
The categories of this paper are: nlin
32
The categories of this paper are: atom-ph