Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Origin and Perspectives of High Mobility in LaAlO3/SrTiO3 Structures   LaAlO3/SrTiO3 structures showing high mobility conduction have recently
aroused large expectations as they might represent a major step towards the
conception of all-oxide electronics devices. For the development of these
technological applications a full understanding of the dimensionality and
origin of the conducting electronic system is crucial. To shed light on this
issue, we have investigated the magnetotransport properties of a LaAlO3 layer
epitaxially grown at low oxygen pressure on a TiO2-terminated (001)-SrTiO3
substrate. In agreement with recent reports, a low-temperature mobility of
about 10^4 cm2/Vs has been found. We conclusively show that the electronic
system is three-dimensional, excluding any interfacial confinement of carriers.
We argue that the high-mobility conduction originates from the doping of SrTiO3
with oxygen vacancies and that it extends over hundreds of microns into the
SrTiO3 substrate. Such high mobility SrTiO3-based heterostructures have a
unique potential for electronic and spintronics devices.

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The categories of this paper are: funct-an
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The categories of this paper are: atom-ph
9
The categories of this paper are: nlin
16
The categories of this paper are: stat
10
The categories of this paper are: q-bio
7
The categories of this paper are: hep-th
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The categories of this paper are: eess
6
The categories of this paper are: astro-ph
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The categories of this paper are: chem-ph
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The categories of this paper are: bayes-an
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The categories of this paper are: alg-geom
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The categories of this paper are: chao-dyn
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The categories of this paper are: dg-ga
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The categories of this paper are: comp-gas
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The categories of this paper are: hep-ex
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The categories of this paper are: q-alg