Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Intrinsic point defects and the $n$- and $p$-type dopability of the
  narrow gap semiconductors GaSb and InSb   The presence of defects in the narrow-gap semiconductors GaSb and InSb
affects their dopability and hence applicability for a range of optoelectronic
applications. Here, we report hybrid density functional theory based
calculations of the properties of intrinsic point defects in the two systems,
including spin orbit coupling effects, which influence strongly their band
structures. With the hybrid DFT approach we adopt, we obtain excellent
agreement between our calculated band dispersions, structural, elastic and
vibrational properties and available measurements. We compute point defect
formation energies in both systems, finding that antisite disorder tends to
dominate, apart from in GaSb under certain conditions, where cation vacancies
can form in significant concentrations. Calculated self-consistent Fermi
energies and equilibrium carrier and defect concentrations confirm the
intrinsic $n$- and $p$-type behaviour of both materials under anion-rich and
anion-poor conditions. Moreover, by computing the compensating defect
concentrations due to the presence of ionised donors and acceptors, we explain
the observed dopability of GaSb and InSb.

28
The categories of this paper are: alg-geom
14
The categories of this paper are: math-ph
8
The categories of this paper are: hep-ex
5
The categories of this paper are: gr-qc
31
The categories of this paper are: ao-sci
24
The categories of this paper are: dg-ga
9
The categories of this paper are: nlin
2
The categories of this paper are: math
11
The categories of this paper are: hep-lat
0
The categories of this paper are: hep-ph
23
The categories of this paper are: solv-int
35
The categories of this paper are: mtrl-th
12
The categories of this paper are: nucl-th
22
The categories of this paper are: chao-dyn
3
The categories of this paper are: physics
20
The categories of this paper are: acc-phys