Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Nature evolution of the shortened bond in atomic clusters and at
  junction interfaces   Thermally stimulated process such as evaporation, phase transition, or
solid-liquid transition of a solid consumes each a certain portion of the solid
cohesive energy that is the sum of bond energy over all the coordinates of all
the involved atoms. Generally, the critical temperatures for such processes
drop with solid size, unless hetero capping or interfacial interaction becomes
dominant, because of the increased portion of the lower-coordinated surface
atoms [Sun et al., J. Phys. Chem. B108, 1080 (2004)]. It is intriguing,
however, that the melting point (Tm) of a solid containing III-A or IV-A atoms
oscillates with size (the Tm drops first and then rises as the solid size is
reduced) and that the Tm of chemically capped nanosolid often increases with
the inverse size. Here we show that bond nature evolution is essential for the
selective nanosolids and at the junction interfaces, which is responsible for
the superheating of the smallest nanosolids, chemically capped clusters, and
junction interfaces that exhibit insulating nature with high mechanical
strength.

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The categories of this paper are: cmp-lg
29
The categories of this paper are: funct-an
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The categories of this paper are: supr-con
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The categories of this paper are: chem-ph
5
The categories of this paper are: gr-qc
27
The categories of this paper are: comp-gas
6
The categories of this paper are: astro-ph
2
The categories of this paper are: math
32
The categories of this paper are: atom-ph
23
The categories of this paper are: solv-int
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The categories of this paper are: alg-geom
18
The categories of this paper are: econ
31
The categories of this paper are: ao-sci
11
The categories of this paper are: hep-lat
10
The categories of this paper are: q-bio
13
The categories of this paper are: quant-ph