Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Effects of transverse geometry on the thermal conductivity of Si and Ge
  nanowires   We explore the effects of geometry on the thermal conductivity (kappa) of
silicon and germanium nanowires, with lengths between 10-120 nm and diameters
up to 5-6 nm. To this end we perform molecular dynamics simulations with the
LAMMPS software, using Tersoff interatomic potentials. We consider nanowires
with polygonal cross section and we discuss the effect of the transverse
geometry on the thermal conductivity. We also consider tubular (hollow)
nanowires and core/shell combinations of Si/Ge and Ge/Si, and we compare the
heat transport of the core/shell structure with that of the separated core and
shell components.

22
The categories of this paper are: chao-dyn
11
The categories of this paper are: hep-lat
28
The categories of this paper are: alg-geom
31
The categories of this paper are: ao-sci
32
The categories of this paper are: atom-ph
27
The categories of this paper are: comp-gas
9
The categories of this paper are: nlin
34
The categories of this paper are: chem-ph
18
The categories of this paper are: econ
5
The categories of this paper are: gr-qc
37
The categories of this paper are: supr-con
21
The categories of this paper are: adap-org
16
The categories of this paper are: stat
29
The categories of this paper are: funct-an
7
The categories of this paper are: hep-th
15
The categories of this paper are: nucl-ex