Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Order from Disorder in the Two-Dimensional Kondo-Necklace   We analyze the effects of site-dilution disorder on the thermodynamic
properties of the two-dimensional Kondo necklace using finite-temperature
stochastic series expansion. Results will be discussed for the dependence on
dilution concentration, temperature, and Kondo exchange-coupling strength of
the uniform susceptibility, the staggered structure factor, and the
Chakravarty-Halperin-Nelson ratio. Dilution is shown to induce effective
free-spin clusters in the gapped phase of the clean system with a
low-temperature Curie constant renormalized below 1/4. Furthermore, dilution is
demonstrated to generate antiferromagnetic order in the quantum disordered
phase of the clean system, i.e. order-from-disorder. In turn, the quantum
critical point of the clean system, separating an antiferromagnetic from a
paramagnetic dimerized state at a critical Kondo exchange-coupling strength
$J_{c}\approx1.4$ is suppressed. Finally, speculations on a renormalized
classical behavior in the dilution induced ordered phase are stated.

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The categories of this paper are: cs
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The categories of this paper are: physics
15
The categories of this paper are: nucl-ex
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The categories of this paper are: q-fin
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The categories of this paper are: hep-th
25
The categories of this paper are: patt-sol
10
The categories of this paper are: q-bio
36
The categories of this paper are: cmp-lg
37
The categories of this paper are: supr-con
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The categories of this paper are: acc-phys
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The categories of this paper are: chao-dyn
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The categories of this paper are: math
32
The categories of this paper are: atom-ph
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The categories of this paper are: chem-ph
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The categories of this paper are: hep-ex
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The categories of this paper are: eess