Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Scattering of band carriers by neutral and charged impurities   Mobility of band carriers scattered on donors, partially ionized, partially
neutral, is considered in general and calculated for crystals belonging to
AIII-BV group. As neutral impurity we have constructed the hydrogen-like model.
It is shown that dependence of mobility on temperature is determined by
relation between number of ionized and neutral donors and by average energy of
electrons.

23
The categories of this paper are: solv-int
9
The categories of this paper are: nlin
14
The categories of this paper are: math-ph
16
The categories of this paper are: stat
37
The categories of this paper are: supr-con
19
The categories of this paper are: eess
28
The categories of this paper are: alg-geom
7
The categories of this paper are: hep-th
2
The categories of this paper are: math
20
The categories of this paper are: acc-phys
3
The categories of this paper are: physics
32
The categories of this paper are: atom-ph
11
The categories of this paper are: hep-lat
24
The categories of this paper are: dg-ga
31
The categories of this paper are: ao-sci
6
The categories of this paper are: astro-ph