Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Realignment of the charge-density wave in TiSe$_2$ by variation of the
  conduction band population   We study the dependence of the dimensional character of the charge-density
wave (CDW) in TiSe$_2$ by a controlled variation of the number of available
charge carriers in the conduction band. A change of dimensionality is realised
by H2O exposure and monitored by angle-resolved photoelectron spectroscopy. The
CDW spanning vector changes from 2x2x1 towards 1x1x2 in a narrow population
range, just before a complete suppression of the CDW. Our findings enable a new
view on the excitonic origin of the CDW, the relation between CDW spanning
vector and periodic lattice distortion, and suggest modifications in the
picture of the recently discovered chirality of the CDW.

35
The categories of this paper are: mtrl-th
34
The categories of this paper are: chem-ph
13
The categories of this paper are: quant-ph
24
The categories of this paper are: dg-ga
8
The categories of this paper are: hep-ex
20
The categories of this paper are: acc-phys
29
The categories of this paper are: funct-an
18
The categories of this paper are: econ
36
The categories of this paper are: cmp-lg
15
The categories of this paper are: nucl-ex
6
The categories of this paper are: astro-ph
0
The categories of this paper are: hep-ph
37
The categories of this paper are: supr-con
26
The categories of this paper are: bayes-an
9
The categories of this paper are: nlin
31
The categories of this paper are: ao-sci