Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Growth kinetics and atomistic mechanisms of native oxidation of
  ZrS$_x$Se$_{2-x}$ and MoS$_2$ crystals   A thorough understanding of native oxides is essential for designing
semiconductor devices. Here we report a study of the rate and mechanisms of
spontaneous oxidation of bulk single crystals of ZrS$_x$Se$_{2-x}$ alloys and
MoS$_2$. ZrS$_x$Se$_{2-x}$ alloys oxidize rapidly, and the oxidation rate
increases with Se content. Oxidation of basal surfaces is initiated by
favorable O$_2$ adsorption and proceeds by a mechanism of Zr-O bond switching,
that collapses the van der Waals gaps, and is facilitated by progressive redox
transitions of the chalcogen. The rate-limiting process is the formation and
out-diffusion of SO$_2$. In contrast, MoS$_2$ basal surfaces are stable due to
unfavorable oxygen adsorption. Our results provide insight and quantitative
guidance for designing and processing semiconductor devices based on
ZrS$_x$Se$_{2-x}$ and MoS$_2$, and identify the atomistic-scale mechanisms of
bonding and phase transformations in layered materials with competing anions.

10
The categories of this paper are: q-bio
29
The categories of this paper are: funct-an
7
The categories of this paper are: hep-th
5
The categories of this paper are: gr-qc
36
The categories of this paper are: cmp-lg
34
The categories of this paper are: chem-ph
24
The categories of this paper are: dg-ga
18
The categories of this paper are: econ
27
The categories of this paper are: comp-gas
37
The categories of this paper are: supr-con
0
The categories of this paper are: hep-ph
25
The categories of this paper are: patt-sol
13
The categories of this paper are: quant-ph
30
The categories of this paper are: q-alg
22
The categories of this paper are: chao-dyn
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The categories of this paper are: hep-ex