Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Solving the phase problem in i(AlPdMn)   We apply a new technique for ab initio phase determination [Acta Crystallogr.
Sect. A, A55, 48 (1999)] to solve for the average structure of the icosahedral
(i) phase of AlPdMn. After an introduction to the crystallographic phase
problem and a description of the method, we present a brief report of our
findings for the structure of i(AlPdMn). Despite the use of data from extremely
high quality samples, we find strong evidence of disorder in the structure,
lending support to the random tiling model of quasicrystal stabilization.

20
The categories of this paper are: acc-phys
14
The categories of this paper are: math-ph
36
The categories of this paper are: cmp-lg
23
The categories of this paper are: solv-int
16
The categories of this paper are: stat
26
The categories of this paper are: bayes-an
9
The categories of this paper are: nlin
1
The categories of this paper are: cs
33
The categories of this paper are: plasm-ph
31
The categories of this paper are: ao-sci
11
The categories of this paper are: hep-lat
18
The categories of this paper are: econ
37
The categories of this paper are: supr-con
2
The categories of this paper are: math
17
The categories of this paper are: q-fin
15
The categories of this paper are: nucl-ex