Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The Inner Phases of Colloidal Hexagonal Ice   Using numerical simulations that mimic recent experiments on hexagonal
colloidal ice, we show that colloidal hexagonal artificial spin ice exhibits an
inner phase within its ice state that has not been observed previously. Under
increasing colloid-colloid repulsion, the initially paramagnetic system crosses
into a disordered ice-regime, then forms a topologically charge ordered state
with disordered colloids, and finally reaches a three-fold degenerate, ordered
ferromagnetic state. This is reminiscent of, yet distinct from, the inner
phases of the magnetic kagome spin ice analog. The difference in the inner
phases of the two systems is explained by their difference in energetics and
frustration.

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The categories of this paper are: funct-an
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The categories of this paper are: eess
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The categories of this paper are: atom-ph
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The categories of this paper are: mtrl-th
13
The categories of this paper are: quant-ph
3
The categories of this paper are: physics
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The categories of this paper are: solv-int
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The categories of this paper are: q-bio
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The categories of this paper are: nucl-ex
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The categories of this paper are: dg-ga
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The categories of this paper are: hep-ex
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The categories of this paper are: patt-sol
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The categories of this paper are: alg-geom
16
The categories of this paper are: stat
14
The categories of this paper are: math-ph
1
The categories of this paper are: cs