Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Simple prediction of immiscible metal alloying based on metastability
  analysis   It has been known that even though two elemental metals, $X$ and $Y$, are
immiscible, they can form alloys on surfaces of other metal $Z$. In order to
understand such surface alloying of immiscible metals, we study the energetic
stability of binary alloys, $XZ$ and $YZ$, in several structures with various
coordination numbers (CNs). By analyzing the formation energy modified to
enhance the subtle energy difference between metastable structures, we find
that $XZ$ and $YZ$ with B2-type structure (CN$=$8) become energetically stable
when the $X$ and $Y$ metals form an alloy on the $Z$ metal surface. This is
consistent with the experimental results for Pb-Sn alloys on metal surfaces
such as Rh(111) and Ru(0001). Some suitable metal substrates are also predicted
to form Pb-Sn alloys.

31
The categories of this paper are: ao-sci
26
The categories of this paper are: bayes-an
37
The categories of this paper are: supr-con
15
The categories of this paper are: nucl-ex
21
The categories of this paper are: adap-org
8
The categories of this paper are: hep-ex
12
The categories of this paper are: nucl-th
6
The categories of this paper are: astro-ph
22
The categories of this paper are: chao-dyn
16
The categories of this paper are: stat
24
The categories of this paper are: dg-ga
25
The categories of this paper are: patt-sol
5
The categories of this paper are: gr-qc
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