Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Observation of An Anisotropic Wigner Crystal   We report a new correlated phase of two-dimensional charged carriers in high
magnetic fields, manifested by an anisotropic insulating behavior at low
temperatures. It appears near Landau level filling factor $\nu=1/2$ in hole
systems confined to wide GaAs quantum wells when the sample is tilted in
magnetic field to an intermediate angle. The parallel field component
($B_{||}$) leads to a crossing of the lowest two Landau levels, and an
elongated hole wavefunction in the direction of $B_{||}$. Under these
conditions, the in-plane resistance exhibits an insulating behavior, with the
resistance along $B_{||}$ more than 10 times smaller than the resistance
perpendicular to $B_{||}$. We interpret this anisotropic insulating phase as a
two-component, striped Wigner crystal.

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The categories of this paper are: acc-phys
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The categories of this paper are: q-bio
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The categories of this paper are: hep-ex
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The categories of this paper are: nucl-th
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The categories of this paper are: cs
2
The categories of this paper are: math
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The categories of this paper are: chem-ph
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The categories of this paper are: comp-gas
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The categories of this paper are: eess
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The categories of this paper are: nucl-ex
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The categories of this paper are: gr-qc
0
The categories of this paper are: hep-ph
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The categories of this paper are: dg-ga
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The categories of this paper are: astro-ph
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The categories of this paper are: econ
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The categories of this paper are: adap-org