Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Anomalous spin-orbit effects in a strained InGaAs/InP quantum well
  structure   There currently is a large effort to explore spin-orbit effects in
semiconductor structures with the ultimate goal of manipulating electron spins
with gates. A search for materials with large spin-orbit coupling is therefore
important. We report results of a study of spin-orbit effects in a strained
InGaAs/InP quantum well. The spin-orbit relaxation time, determined from the
weak antilocalization effect, was found to depend non-monotonically on gate
voltage. The spin orbit scattering rate had a maximum value of $5\times
10^{10}s^{-1}$ at an electron density of $n=3\times 10^{15} m^{-2}$. The
scattering rate decreased from this for both increasing and decreasing
densities. The smallest measured value was approximately $10^9 s^{-1}$ at an
electron concentration of $n=6\times 10^{15} m^{-2}$. This behavior could not
be explained by either the Rashba nor the bulk Dresselhaus mechanisms but is
attributed to asymmetry or strain effects at dissimilar quantum well
interfaces.

10
The categories of this paper are: q-bio
26
The categories of this paper are: bayes-an
18
The categories of this paper are: econ
9
The categories of this paper are: nlin
23
The categories of this paper are: solv-int
2
The categories of this paper are: math
14
The categories of this paper are: math-ph
34
The categories of this paper are: chem-ph
33
The categories of this paper are: plasm-ph
22
The categories of this paper are: chao-dyn
1
The categories of this paper are: cs
36
The categories of this paper are: cmp-lg
28
The categories of this paper are: alg-geom
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The categories of this paper are: adap-org
29
The categories of this paper are: funct-an
20
The categories of this paper are: acc-phys