Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Superconducting boron doped nanocrystalline diamond on boron nitride
  ceramics   In this work we have demonstrated the growth of nanocrystalline diamond on
boron nitride ceramic. We measured the zeta potential of the ceramics to select
the diamond seeds. Diamond was then grown on the seeded ceramics using a
microwave chemical vapour deposition system. A clear difference was found
between the samples which were seeded with nanodiamond and the ones not seeded
before growth. Raman spectroscopy confirmed the excellent quality of the
diamond film. Dielectric measurements showed an increase in the dielectric
constant of the material after diamond growth. The diamond was also doped with
boron to make it superconducting. The film had a transition temperature close
to 3.4K. Similar strategies can be applied for growth of diamond on other types
of ceramics.

31
The categories of this paper are: ao-sci
5
The categories of this paper are: gr-qc
8
The categories of this paper are: hep-ex
30
The categories of this paper are: q-alg
26
The categories of this paper are: bayes-an
20
The categories of this paper are: acc-phys
33
The categories of this paper are: plasm-ph
23
The categories of this paper are: solv-int
35
The categories of this paper are: mtrl-th
21
The categories of this paper are: adap-org
14
The categories of this paper are: math-ph
10
The categories of this paper are: q-bio
6
The categories of this paper are: astro-ph
11
The categories of this paper are: hep-lat
34
The categories of this paper are: chem-ph
25
The categories of this paper are: patt-sol