Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Investigation of the electrostatic potential of a grain boundary in
  Y-substituted BaZrO3 using inline electron holography   We apply inline electron holography to investigate the electrostatic
potential across an individual BaZr0.9Y0.1O3 grain boundary. With holography,
we measure a grain boundary potential of -1.3 V. Electron energy loss
spectroscopy analyses indicate that barium vacancies at the grain boundary are
the main contributors to the potential well in this sample. Furthermore,
geometric phase analysis and density functional theory calculations suggest
that reduced atomic density at the grain boundary also contributes to the
experimentally measured potential well.

16
The categories of this paper are: stat
27
The categories of this paper are: comp-gas
5
The categories of this paper are: gr-qc
22
The categories of this paper are: chao-dyn
7
The categories of this paper are: hep-th
8
The categories of this paper are: hep-ex
30
The categories of this paper are: q-alg
15
The categories of this paper are: nucl-ex
29
The categories of this paper are: funct-an
18
The categories of this paper are: econ
37
The categories of this paper are: supr-con
23
The categories of this paper are: solv-int
12
The categories of this paper are: nucl-th
11
The categories of this paper are: hep-lat
28
The categories of this paper are: alg-geom
36
The categories of this paper are: cmp-lg