Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Reflections Function Method In the X-Ray Reflectometry   The theory of specular X-ray reflectivity from a rough interface based upon
the reflection function method (RFM) is proposed. The RFM transforms the second
order differential equation for the wave amplitude into the non-linear first
order differential equation of Riccati type for the reflection function. This
equation is solved in the approximation of the abruptly changing potential,
which is justified for the typical angles of X-ray reflectometry. The
reflectivity is represented as a series. The first term of this series
reproduces the Nevot-Croce approximation and second one gives the phase
correction for greater angles. It is shown that the phase correction can be
used to obtain the degree of interface asymmetry. The X-ray reflectometry model
profiles for Fe/Cr superlattice are used to illustrate the method.

11
The categories of this paper are: hep-lat
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The categories of this paper are: quant-ph
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The categories of this paper are: q-bio
8
The categories of this paper are: hep-ex
2
The categories of this paper are: math
18
The categories of this paper are: econ
37
The categories of this paper are: supr-con
12
The categories of this paper are: nucl-th
27
The categories of this paper are: comp-gas
9
The categories of this paper are: nlin
25
The categories of this paper are: patt-sol
26
The categories of this paper are: bayes-an
1
The categories of this paper are: cs
14
The categories of this paper are: math-ph
24
The categories of this paper are: dg-ga
0
The categories of this paper are: hep-ph