Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Consequences of negative differential electron mobility in insulated
  gate field effect transistors   We study the consequences of negative differential electron mobility in
insulated gate field effect transistors (FETS) using the field model. We show
that, in contrast to the case of the monotonic velocity saturation model, the
field distributions in a short-channel FET may be described by the gradual
channel approximation even for high drain-to-source voltages. The
current-voltage dependence of the short-channel FET should have a branch with a
negative slope. The FET exhibits a negative differential resistance and may
show convective or absolute instability, depending on the applied voltages. The
fluctuation growth is governed by the diffusion law with a negative effective
diffusion coefficient.

10
The categories of this paper are: q-bio
18
The categories of this paper are: econ
36
The categories of this paper are: cmp-lg
16
The categories of this paper are: stat
23
The categories of this paper are: solv-int
32
The categories of this paper are: atom-ph
35
The categories of this paper are: mtrl-th
37
The categories of this paper are: supr-con
0
The categories of this paper are: hep-ph
26
The categories of this paper are: bayes-an
27
The categories of this paper are: comp-gas
3
The categories of this paper are: physics
9
The categories of this paper are: nlin
29
The categories of this paper are: funct-an
21
The categories of this paper are: adap-org
19
The categories of this paper are: eess