Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Experimental evidence of effective <111> atomic exchanges in a B2
  intermetallic alloy   We report on an atomic-scale X-ray Photon Correlation Spectroscopy study on
Fe-rich FeAl in the B2-ordered regime revealing effective <111>-exchanges of
atoms on the Al-sublattice. The diffusion mechanism responsible for these
exchanges is the dominating process for chemical diffusion and therefore
controls long-range material transport in the system. Comparison with previous
atomistic results shows that the dominance of further exchanges can be
characteristic at moderate temperatures where the system is highly ordered.

25
The categories of this paper are: patt-sol
20
The categories of this paper are: acc-phys
31
The categories of this paper are: ao-sci
29
The categories of this paper are: funct-an
22
The categories of this paper are: chao-dyn
32
The categories of this paper are: atom-ph
15
The categories of this paper are: nucl-ex
18
The categories of this paper are: econ
12
The categories of this paper are: nucl-th
7
The categories of this paper are: hep-th
19
The categories of this paper are: eess
0
The categories of this paper are: hep-ph
3
The categories of this paper are: physics
9
The categories of this paper are: nlin
16
The categories of this paper are: stat
35
The categories of this paper are: mtrl-th