Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Single-ion versus two-ion anisotropy in magnetic compounds: A neutron
  scattering study   Anisotropy effects can significantly control or modify the ground-state
properties of magnetic systems. Yet the origin and the relative importance of
the possible anisotropy terms is difficult to assess experimentally and often
ambiguous. Here we propose a technique which allows a very direct distinction
between single-ion and two-ion anisotropy effects. The method is based on
high-resolution neutron spectroscopic investigations of magnetic cluster
excitations. This is exemplified for manganese dimers and tetramers in the
mixed compounds CsMnxMg1-xBr3 (0.05\leqx\leq0.40). Our experiments provide
evidence for a pronounced anisotropy of the order of 3% of the dominant
bilinear exchange interaction, and the anisotropy is dominated by the
single-ion term. The detailed characterization of magnetic cluster excitations
offers a convenient way to unravel anisotropy effects in any magnetic material.

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The categories of this paper are: funct-an
20
The categories of this paper are: acc-phys
26
The categories of this paper are: bayes-an
14
The categories of this paper are: math-ph
34
The categories of this paper are: chem-ph
31
The categories of this paper are: ao-sci
13
The categories of this paper are: quant-ph
27
The categories of this paper are: comp-gas
22
The categories of this paper are: chao-dyn
0
The categories of this paper are: hep-ph
17
The categories of this paper are: q-fin
15
The categories of this paper are: nucl-ex
33
The categories of this paper are: plasm-ph
12
The categories of this paper are: nucl-th
23
The categories of this paper are: solv-int
8
The categories of this paper are: hep-ex