Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Reversible control of interface-water induced carrier density in
  graphene-on-SiO$_2$ by thermal cycling under gate-voltage   A reversible handle on graphene carrier density, other than the gate electric
field, is desirable for memory applications of graphene. Our experiments show
that the commonly observed carrier density hysteresis in graphene on SiO$_2$
due to interface water/oxygen vanishes at temperatures below 250 K. The state
of these species, which affects the graphene carrier density, at low
temperatures can be reversibly controlled by thermal cycling to room
temperature at different gate voltages. Further, devices prepared with
relatively dry interface, and thus showing negligible hysteresis at room
temperature, show a marked increase in hysteresis on heating above room
temperature. Thus thermal-cycling, to high temperatures and under gate-voltage,
provides a reversible handle on carrier density. These results are discussed in
terms of temperature and interface-water density dependence of redox-reaction
kinetics.

2
The categories of this paper are: math
8
The categories of this paper are: hep-ex
7
The categories of this paper are: hep-th
19
The categories of this paper are: eess
11
The categories of this paper are: hep-lat
17
The categories of this paper are: q-fin
10
The categories of this paper are: q-bio
13
The categories of this paper are: quant-ph
29
The categories of this paper are: funct-an
15
The categories of this paper are: nucl-ex
32
The categories of this paper are: atom-ph
12
The categories of this paper are: nucl-th
1
The categories of this paper are: cs
26
The categories of this paper are: bayes-an
37
The categories of this paper are: supr-con
36
The categories of this paper are: cmp-lg