Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Photo-thermoelectric detection of cyclotron resonance in asymmetrically
  carrier-doped graphene two-terminal device   Graphene is known to show a significant photo-thermoelectric effect that can
exceed its photovoltaic contribution. Here, by utilizing this effect, we
demonstrate a photovoltage measurement of cyclotron resonance in a
double-back-gated h-BN/graphene/h-BN two-terminal device. A graphite local
bottom gate was fabricated in addition to a p-doped Si global back gate. By
tuning the two gate voltages, an in-plane graphene junction having an
asymmetric carrier-doping profile was created. With the help of this asymmetric
structure, the photo-thermoelectric voltage generated in the vicinity of the
metal-electrode/graphene junction was detected. At a low temperature and in the
presence of a magnetic field, a photo-induced voltage was measured under the
irradiation of an infrared laser (Wavelength= 9.28 to 10.61 micron). We
observed a strong enhancement of the photovoltage signal under the cyclotron
resonance condition, at which the energy of excitation coincides with a
transition between Landau levels. These results highlight the possibility of
using the photo-thermoelectric effect in graphene for THz photo-detection.

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The categories of this paper are: plasm-ph
29
The categories of this paper are: funct-an
24
The categories of this paper are: dg-ga
34
The categories of this paper are: chem-ph
13
The categories of this paper are: quant-ph
22
The categories of this paper are: chao-dyn
23
The categories of this paper are: solv-int
18
The categories of this paper are: econ
28
The categories of this paper are: alg-geom
32
The categories of this paper are: atom-ph
25
The categories of this paper are: patt-sol
30
The categories of this paper are: q-alg
1
The categories of this paper are: cs
0
The categories of this paper are: hep-ph
37
The categories of this paper are: supr-con
8
The categories of this paper are: hep-ex