Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Raman scattering from the bulk inactive out-of-plane B$^{1}_{2\text{g}}$
  mode in few-layer MoTe$_{2}$   Raman scattering from the out-of-plane vibrational modes
(A$_{1\text{g}}$/A'$_{1}$), which originate from the bulk-inactive out-of-plane
B$^{1}_{2\text{g}}$ mode, are studied in few-layer MoTe$_{2}$.
Temperature-dependent measurements reveal a doublet structure of the
corresponding peaks in the Raman scattering spectra of tetralayer and
pentalayer samples. A strong enhancement of their lower energy components is
recorded at low temperature for 1.91 eV and 1.96 eV laser excitation. We
discuss the attribution of the peaks to the inner modes of the respective
Raman-active vibrations. The temperature evolution of their intensity strongly
suggests a resonant character of the employed excitation, which leads to the
mode enhancement at low temperature. The resonance of the laser light with the
singularity of the electronic density of states at the $M$ point of the
Brillouin zone in MoTe$_{2}$ is proposed to be responsible for the observed
effects.

16
The categories of this paper are: stat
30
The categories of this paper are: q-alg
8
The categories of this paper are: hep-ex
10
The categories of this paper are: q-bio
0
The categories of this paper are: hep-ph
36
The categories of this paper are: cmp-lg
26
The categories of this paper are: bayes-an
11
The categories of this paper are: hep-lat
17
The categories of this paper are: q-fin
9
The categories of this paper are: nlin
12
The categories of this paper are: nucl-th
27
The categories of this paper are: comp-gas
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The categories of this paper are: econ
20
The categories of this paper are: acc-phys
15
The categories of this paper are: nucl-ex
2
The categories of this paper are: math