Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Evolution of the linear-polarization-angle-dependence of the
  radiation-induced magnetoresistance-oscillations with microwave power   We examine the role of the microwave power in the linear polarization angle
dependence of the microwave radiation induced magnetoresistance oscillations
observed in the high mobility GaAs/AlGaAs two dimensional electron system.
Diagonal resistance $R_{xx}$ was measured at fixed magnetic fields
corresponding to the photo-excited oscillatory extrema of $R_{xx}$ as a
function of both the microwave power, $P$, and the linear polarization angle,
$\theta$. Color contour plots of such measurements demonstrate the evolution of
the $R_{xx}$ versus $\theta$ line shape with increasing microwave power. We
report that the non-linear power dependence of the amplitude of the
radiation-induced magnetoresistance oscillations distorts the cosine-square
relation between $R_{xx}$ and $\theta$ at high power.

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The categories of this paper are: eess
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The categories of this paper are: solv-int
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The categories of this paper are: dg-ga
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The categories of this paper are: bayes-an
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The categories of this paper are: chao-dyn
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The categories of this paper are: stat
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The categories of this paper are: hep-lat
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The categories of this paper are: hep-th
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The categories of this paper are: alg-geom
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The categories of this paper are: hep-ex
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The categories of this paper are: physics
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The categories of this paper are: econ
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The categories of this paper are: patt-sol
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The categories of this paper are: supr-con
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The categories of this paper are: cmp-lg
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The categories of this paper are: atom-ph