Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Field-tuned order by disorder in Ising frustrated magnets with
  antiferromagnetic interactions   We demonstrate the appearance of thermal order by disorder in Ising
pyrochlores with staggered antiferromagnetic order frustrated by an applied
magnetic field. We use a mean-field cluster variational method, a
low-temperature expansion and Monte Carlo simulations to characterise the
order-by-disorder transition. By direct evaluation of the density of states we
quantitatively show how a symmetry-broken state is selected by thermal
excitations. We discuss the relevance of our results to experiments in $2d$ and
$3d$ samples, and evaluate how anomalous finite-size effects could be exploited
to detect this phenomenon experimentally in two-dimensional artificial systems,
or in antiferromagnetic all-in--all-out pyrochlores like Nd$_2$Hf$_2$O$_7$ or
Nd$_2$Zr$_2$O$_7$, for the first time.

33
The categories of this paper are: plasm-ph
19
The categories of this paper are: eess
1
The categories of this paper are: cs
12
The categories of this paper are: nucl-th
0
The categories of this paper are: hep-ph
29
The categories of this paper are: funct-an
9
The categories of this paper are: nlin
34
The categories of this paper are: chem-ph
18
The categories of this paper are: econ
5
The categories of this paper are: gr-qc
6
The categories of this paper are: astro-ph
23
The categories of this paper are: solv-int
35
The categories of this paper are: mtrl-th
24
The categories of this paper are: dg-ga
16
The categories of this paper are: stat
10
The categories of this paper are: q-bio