Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Commensurability oscillations in a quasi-two-dimensional electron gas
  subjected to strong in-plane magnetic field   We report on a theoretical study of the commensurability oscillations in a
quasi-two-dimensional electron gas modulated by a unidirectional periodic
potential and subjected to tilted magnetic fields with a strong in-plane
component. As a result of coupling of the in-plane field component and the
confining potential in the finite-width quantum well, the originally circular
cyclotron orbits become anisotropic and tilted out of the sample plane. A
quasi-classical approach to the theory, that relates the magneto-resistance
oscillations to the guiding-center drift, is extended to this case.

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The categories of this paper are: patt-sol
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The categories of this paper are: dg-ga
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The categories of this paper are: alg-geom
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The categories of this paper are: q-bio
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The categories of this paper are: funct-an
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The categories of this paper are: nucl-ex
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The categories of this paper are: comp-gas
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The categories of this paper are: q-fin
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The categories of this paper are: atom-ph
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The categories of this paper are: gr-qc
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The categories of this paper are: nucl-th
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The categories of this paper are: supr-con
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The categories of this paper are: eess
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The categories of this paper are: q-alg
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The categories of this paper are: solv-int
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The categories of this paper are: chem-ph