Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Density-functional study of oxygen adsorption on Mo(112)   Atomic oxygen adsorption on the Mo(112) surface has been investigated by
means of first-principles total energy calculations. Among the variety of
possible adsorption sites it was found that the bridge sites between two Mo
atoms of the topmost row are favored for O adsorption at low and medium
coverages. At about one monolayer coverage oxygen atoms prefer to adsorb in a
quasi-threefold hollow sites coordinated by two first-layer Mo atoms and one
second layer atom. The stability of a structural model for an oxygen-induced
$p(2\times 3)$ reconstruction of the missing-row type is examined.

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The categories of this paper are: eess
9
The categories of this paper are: nlin
11
The categories of this paper are: hep-lat
33
The categories of this paper are: plasm-ph
25
The categories of this paper are: patt-sol
21
The categories of this paper are: adap-org
18
The categories of this paper are: econ
23
The categories of this paper are: solv-int
2
The categories of this paper are: math
28
The categories of this paper are: alg-geom
12
The categories of this paper are: nucl-th
16
The categories of this paper are: stat
37
The categories of this paper are: supr-con
27
The categories of this paper are: comp-gas
10
The categories of this paper are: q-bio
3
The categories of this paper are: physics