Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Charge distribution in C$_{60}$ crystal doped by electric field   The calculations of the charge distribution in C$_{60}$-based FET structure
are presented. A simple model is proposed to describe the distribution of the
injected electrons or holes between two-dimensional layers. The calculations
show that the relative charge distribution between the layers turns to be
independent on the total amount of injected charges. The charge density is
maximal on the surface layer and drops exponentially with the depth increase.
The relative amounts of injected charge involved in the top layer are 73 and 64
per cent in the case of electron and hole injection, respectively. Thus, the
charge localization on the crystal surface turns to be markedly different from
near complete one that was obtained earlier within tight- binding model for the
charge concentration providing superconductivity.

10
The categories of this paper are: q-bio
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The categories of this paper are: nlin
8
The categories of this paper are: hep-ex
22
The categories of this paper are: chao-dyn
24
The categories of this paper are: dg-ga
0
The categories of this paper are: hep-ph
32
The categories of this paper are: atom-ph
18
The categories of this paper are: econ
11
The categories of this paper are: hep-lat
14
The categories of this paper are: math-ph
20
The categories of this paper are: acc-phys
16
The categories of this paper are: stat
35
The categories of this paper are: mtrl-th
6
The categories of this paper are: astro-ph
28
The categories of this paper are: alg-geom
25
The categories of this paper are: patt-sol