Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Effect of band structure on field emission of crystalline graphite   The field emission of crystalline AAA graphite is studied within a simple
analytical approach with account of the exact dispersion relation near the
Fermi level. The emission current is calculated for two crystal orientations
with respect to the applied electric field. It is found that the exponent of
the Fowler-Nordheim equation remains the same while the preexponential factor
is markedly modified. For both field directions, the linear field dependence is
found in weak fields and the standard quadratic Fowler-Nordheim behavior takes
place in strong fields. A strong dependence of the emission current from the
interlayer distance is observed. As an illustration of the method the known
case of a single-walled carbon nanotube is considered.

11
The categories of this paper are: hep-lat
24
The categories of this paper are: dg-ga
36
The categories of this paper are: cmp-lg
6
The categories of this paper are: astro-ph
0
The categories of this paper are: hep-ph
31
The categories of this paper are: ao-sci
5
The categories of this paper are: gr-qc
7
The categories of this paper are: hep-th
12
The categories of this paper are: nucl-th
30
The categories of this paper are: q-alg
27
The categories of this paper are: comp-gas
16
The categories of this paper are: stat
22
The categories of this paper are: chao-dyn
19
The categories of this paper are: eess
17
The categories of this paper are: q-fin
3
The categories of this paper are: physics