Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Laser-induced solid-solid phase transition in As under pressure: A
  theoretical prediction   In Arsenic a pressure-induced solid-solid phase transition from the A7 into
the simple cubic structure has been experimentally demonstrated [Beister et
al., Phys. Rev. B 41, 5535 (1990)]. In this paper we present calculations,
which predict that this phase transition can also be induced by an ultrashort
laser pulse in As under pressure. In addition, calculations for the
pressure-induced phase transition are presented. Using density functional
theory in the generalized gradient approximation, we found that the
pressure-induced phase transition takes place at 26.3 GPa and is accompanied by
a volume change "Delta V" = 0.5 bohr^3/atom. The laser-induced phase transition
is predicted for an applied pressure of 23.8 GPa and an absorbed laser energy
of 2.8 mRy/atom.

30
The categories of this paper are: q-alg
32
The categories of this paper are: atom-ph
14
The categories of this paper are: math-ph
29
The categories of this paper are: funct-an
15
The categories of this paper are: nucl-ex
36
The categories of this paper are: cmp-lg
21
The categories of this paper are: adap-org
6
The categories of this paper are: astro-ph
35
The categories of this paper are: mtrl-th
31
The categories of this paper are: ao-sci
34
The categories of this paper are: chem-ph
19
The categories of this paper are: eess
20
The categories of this paper are: acc-phys
1
The categories of this paper are: cs
9
The categories of this paper are: nlin
12
The categories of this paper are: nucl-th