Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Density functional theory calculations and thermodynamic analysis of the
  forsterite $Mg_{2}SiO_{4}$(010) surface   The stability of possible termination structures for the (010) surface of
forsterite, $ Mg_2SiO_4 $, is studied using a density functional theory (DFT)
based thermodynamic approach. The DFT calculations are used to estimate the
surface Gibbs free energy of various surface structures and compare their
stability as a function of the chemical environment. Among 9 possible
terminations, the SiO-II, M2, O-II terminations are found to be most stable as
conditions range from Mg-poor to Mg-rich. This relative stability order remains
the same at an elevated temperature. The surface phase diagram obtained
provides ground for further theoretical studies of chemical processes on
forsterite surfaces in terrestrial planets.

28
The categories of this paper are: alg-geom
8
The categories of this paper are: hep-ex
5
The categories of this paper are: gr-qc
35
The categories of this paper are: mtrl-th
0
The categories of this paper are: hep-ph
14
The categories of this paper are: math-ph
17
The categories of this paper are: q-fin
29
The categories of this paper are: funct-an
31
The categories of this paper are: ao-sci
13
The categories of this paper are: quant-ph
2
The categories of this paper are: math
4
The categories of this paper are: cond-mat
15
The categories of this paper are: nucl-ex
21
The categories of this paper are: adap-org
10
The categories of this paper are: q-bio
33
The categories of this paper are: plasm-ph