Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Microwave photoconductivity of a two-dimensional electron gas due to
  intra-Landau-level transitions   Motivated by a recent experiment, we study the microwave-induced
photoconductivity of a two-dimensional electron gas arising from
intra-Landau-level transitions within a model where the electrons are subject
to a unidirectional periodic potential in addition to a weaker impurity
potential. With appropriate identifications, our results can be compared to
experiment and allow us to explain the sign of the photocurrent, its dependence
on magnetic field and microwave frequency as well as the microwave-induced
suppression of the Shubnikov-deHaas oscillations.

11
The categories of this paper are: hep-lat
0
The categories of this paper are: hep-ph
19
The categories of this paper are: eess
34
The categories of this paper are: chem-ph
16
The categories of this paper are: stat
12
The categories of this paper are: nucl-th
6
The categories of this paper are: astro-ph
7
The categories of this paper are: hep-th
18
The categories of this paper are: econ
1
The categories of this paper are: cs
35
The categories of this paper are: mtrl-th
15
The categories of this paper are: nucl-ex
10
The categories of this paper are: q-bio
9
The categories of this paper are: nlin
30
The categories of this paper are: q-alg
32
The categories of this paper are: atom-ph